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Your Vehicle // Porsche // Cayman 987C / 981C (2005-2016) // Any
- Accessories
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SOUL Performance Products
The SOUL Performance Street Package is a premium aftermarket exhaust upgrade developed specifically for the Porsche 981 Cayman GT4, Boxster Spyder and GT4 Clubsport models manufactured between 2015 and 2016.
Fits:
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
Designed for the naturally aspirated 3.8-litre flat-six engine, this comprehensive package combines SOUL Performance Long Tube Street Headers with its electronically controlled Valved Exhaust System.
The package replaces the original exhaust manifold and catalytic converter assemblies, together with the factory rear exhaust system, to provide an integrated high-performance exhaust arrangement.
Unlike the SOUL Competition Package, which removes the factory catalytic converters, the Street Package incorporates high-flow catalytic converters within its long-tube headers.
These converters are designed to provide a less restrictive exhaust path while retaining catalytic exhaust treatment.
The headers feature 2-inch primary runners, smooth-radius tubing, port-matched mounting flanges and optimised collectors to support efficient exhaust gas movement away from the engine.
Manufactured from T304L stainless steel, the headers are engineered for durability, corrosion resistance and repeated exposure to high exhaust temperatures.
The accompanying SOUL Valved Exhaust System uses mandrel-bent stainless steel tubing, specially developed rear silencers and electronically controlled exhaust valves.
With the exhaust valves closed, gases are directed through sound-absorbing mufflers that reduce unwanted exhaust resonance and help maintain a more refined driving experience.
With the valves open, exhaust gases follow a more direct path, producing a louder, more pronounced flat-six soundtrack.
This dual-character design allows the driver to enjoy a sporting exhaust note while retaining the flexibility of selectable exhaust operation.
The package is designed to integrate with the appropriate original Porsche exhaust valve controls, allowing the driver to continue using the factory exhaust button.
The Street Package is designed for direct bolt-on installation on compatible vehicles, with manufacturer-supplied fitting instructions.
SOUL Performance also reports measurable performance improvements from its Long Tube Street Headers when combined with suitable ECU tuning.
Backed by the manufacturer's lifetime warranty, subject to the applicable terms, this package offers a comprehensive exhaust upgrade for owners seeking enhanced engine response, a more engaging flat-six sound and an integrated stainless steel exhaust system.
What This Product Does:
The Street Package replaces the original exhaust manifolds,
catalytic converter assemblies and rear exhaust system with components designed
to improve exhaust flow and provide selectable exhaust sound characteristics.
It consists of two main systems.
1. SOUL Performance Long Tube Street Headers
The Long Tube Street Headers collect exhaust gases as they leave the engine's cylinder heads.
They replace the original Porsche exhaust manifolds and catalytic converters with a stainless steel assembly incorporating long primary runners, optimised collectors and high-flow catalytic converters.
Their main functions include:
Collecting
exhaust gases: Direct combustion gases away from the cylinder heads.
Improving
exhaust flow: Use smooth-radius runners and carefully developed
collectors.
Supporting
exhaust scavenging: Encourage efficient exhaust pulse movement through
the primary pipes.
Reducing
unnecessary restriction: Use high-flow catalytic converters designed
for improved gas flow.
Supporting
engine performance: Help the naturally aspirated engine breathe more
efficiently.
Improving
throttle response: Support more responsive engine behaviour during
acceleration.
Enhancing
exhaust sound: Alter the exhaust pulse characteristics to create a
stronger flat-six tone.
Retaining
catalytic treatment: Pass exhaust gases through integrated high-flow
catalytic converters.
Supporting
high-RPM operation: Use a runner and collector design developed for
the GT4's 3.8L engine.
Providing
durability: Use stainless steel construction for demanding exhaust
operating conditions.
2. SOUL Performance Valved Exhaust System
The Valved Exhaust System receives gases from the headers and directs them through the rear exhaust assembly.
Its electronically controlled valves provide two different exhaust sound characteristics.
The main functions include:
Directing
exhaust gases towards the rear outlets.
Providing
selectable exhaust sound modes.
Reducing
unwanted resonance with the valves closed.
Producing
a more aggressive exhaust note with the valves open.
Supporting
efficient exhaust flow through mandrel-bent tubing.
Maintaining
compatibility with the applicable factory exhaust valve controls.
Providing
durable stainless steel rear silencers.
Enhancing
the vehicle's rear appearance through selectable exhaust tips.
Why Upgrading Matters:
The SOUL Performance Street Package provides a comprehensive
exhaust upgrade designed to improve exhaust flow, engine response and driving
enjoyment.
1. Improved Exhaust Flow
The Long Tube Street Headers incorporate smooth-radius primary runners, optimised collectors and high-flow catalytic converters.
These components are designed to reduce unnecessary restrictions and improve exhaust gas movement.
2. Increased Performance Potential
SOUL Performance reports third-party dynamometer testing of its Long Tube Street Headers on a Dyno Dynamics dynamometer.
The manufacturer's published figures include:
- Approximately
30 wheel horsepower improvement in a tested configuration with
supporting ECU tuning.
Approximately - Approximately 12 wheel horsepower incremental improvement attributed to the Street Headers after the ECU tune had been applied.
These figures relate to the Street Headers' published testing and should not be presented as independently verified gains for the complete Street Package.
Actual performance depends on the vehicle, ECU calibration, engine condition and other modifications.
3. Sharper Throttle Response
The freer-flowing headers are designed to help the engine respond more efficiently to accelerator input.
This can enhance the driving experience during acceleration, particularly at higher engine speeds.
4. Enhanced Flat-Six Sound
The combination of the long-tube headers and valved rear exhaust creates a more pronounced engine note.
The system is designed to highlight the naturally aspirated engine's characteristic sound without requiring permanently loud exhaust operation.
5. Selectable Exhaust Volume
The electronically controlled exhaust valves allow different exhaust sound modes.
This provides additional flexibility compared with a fixed, non-valved exhaust arrangement.
6. High-Flow Catalytic Converters
Unlike the catalyst-free Competition Package, the Street Package incorporates high-flow catalytic converters.
These provide catalytic exhaust treatment while being designed to reduce restriction.
However, their presence does not guarantee compliance with UK emissions, MOT or other public-road requirements.
7. Reduced Unwanted Drone
The SOUL mufflers incorporate sound-absorbing materials intended to minimise cabin resonance.
This is particularly beneficial during steady-speed driving.
8. Durable Stainless Steel Construction
The headers and rear exhaust use T304L stainless steel.
This material offers corrosion resistance and durability under repeated heating and cooling cycles.
9. Factory Exhaust Valve Control Compatibility
The Valved Exhaust System is designed to integrate with the appropriate original Porsche exhaust valve controls.
The driver can continue using the familiar factory exhaust control button.
10. Complete Integrated Upgrade
The package combines the Long Tube Street Headers and Valved Exhaust System in one manufacturer's exhaust solution.
This helps ensure the components are designed to work together.
11. Premium Exhaust Tip Options
A variety of stainless steel and titanium exhaust tips allows the owner to personalise the vehicle's rear appearance.
12. Manufacturer Warranty
SOUL Performance provides a lifetime warranty for the included exhaust components, subject to its published warranty conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.GT4.STPKG.SLT
The product you are viewing cross references to these numbers
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
The SOUL Performance Street Package is a premium aftermarket exhaust upgrade developed specifically for the Porsche 981 Cayman GT4, Boxster Spyder and GT4 Clubsport models manufactured between 2015 and 2016.
Fits:
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
Designed for the naturally aspirated 3.8-litre flat-six engine, this comprehensive package combines SOUL Performance Long Tube Street Headers with its electronically controlled Valved Exhaust System.
The package replaces the original exhaust manifold and catalytic converter assemblies, together with the factory rear exhaust system, to provide an integrated high-performance exhaust arrangement.
Unlike the SOUL Competition Package, which removes the factory catalytic converters, the Street Package incorporates high-flow catalytic converters within its long-tube headers.
These converters are designed to provide a less restrictive exhaust path while retaining catalytic exhaust treatment.
The headers feature 2-inch primary runners, smooth-radius tubing, port-matched mounting flanges and optimised collectors to support efficient exhaust gas movement away from the engine.
Manufactured from T304L stainless steel, the headers are engineered for durability, corrosion resistance and repeated exposure to high exhaust temperatures.
The accompanying SOUL Valved Exhaust System uses mandrel-bent stainless steel tubing, specially developed rear silencers and electronically controlled exhaust valves.
With the exhaust valves closed, gases are directed through sound-absorbing mufflers that reduce unwanted exhaust resonance and help maintain a more refined driving experience.
With the valves open, exhaust gases follow a more direct path, producing a louder, more pronounced flat-six soundtrack.
This dual-character design allows the driver to enjoy a sporting exhaust note while retaining the flexibility of selectable exhaust operation.
The package is designed to integrate with the appropriate original Porsche exhaust valve controls, allowing the driver to continue using the factory exhaust button.
The Street Package is designed for direct bolt-on installation on compatible vehicles, with manufacturer-supplied fitting instructions.
SOUL Performance also reports measurable performance improvements from its Long Tube Street Headers when combined with suitable ECU tuning.
Backed by the manufacturer's lifetime warranty, subject to the applicable terms, this package offers a comprehensive exhaust upgrade for owners seeking enhanced engine response, a more engaging flat-six sound and an integrated stainless steel exhaust system.
What This Product Does:
The Street Package replaces the original exhaust manifolds,
catalytic converter assemblies and rear exhaust system with components designed
to improve exhaust flow and provide selectable exhaust sound characteristics.
It consists of two main systems.
1. SOUL Performance Long Tube Street Headers
The Long Tube Street Headers collect exhaust gases as they leave the engine's cylinder heads.
They replace the original Porsche exhaust manifolds and catalytic converters with a stainless steel assembly incorporating long primary runners, optimised collectors and high-flow catalytic converters.
Their main functions include:
Collecting
exhaust gases: Direct combustion gases away from the cylinder heads.
Improving
exhaust flow: Use smooth-radius runners and carefully developed
collectors.
Supporting
exhaust scavenging: Encourage efficient exhaust pulse movement through
the primary pipes.
Reducing
unnecessary restriction: Use high-flow catalytic converters designed
for improved gas flow.
Supporting
engine performance: Help the naturally aspirated engine breathe more
efficiently.
Improving
throttle response: Support more responsive engine behaviour during
acceleration.
Enhancing
exhaust sound: Alter the exhaust pulse characteristics to create a
stronger flat-six tone.
Retaining
catalytic treatment: Pass exhaust gases through integrated high-flow
catalytic converters.
Supporting
high-RPM operation: Use a runner and collector design developed for
the GT4's 3.8L engine.
Providing
durability: Use stainless steel construction for demanding exhaust
operating conditions.
2. SOUL Performance Valved Exhaust System
The Valved Exhaust System receives gases from the headers and directs them through the rear exhaust assembly.
Its electronically controlled valves provide two different exhaust sound characteristics.
The main functions include:
Directing
exhaust gases towards the rear outlets.
Providing
selectable exhaust sound modes.
Reducing
unwanted resonance with the valves closed.
Producing
a more aggressive exhaust note with the valves open.
Supporting
efficient exhaust flow through mandrel-bent tubing.
Maintaining
compatibility with the applicable factory exhaust valve controls.
Providing
durable stainless steel rear silencers.
Enhancing
the vehicle's rear appearance through selectable exhaust tips.
Why Upgrading Matters:
The SOUL Performance Street Package provides a comprehensive
exhaust upgrade designed to improve exhaust flow, engine response and driving
enjoyment.
1. Improved Exhaust Flow
The Long Tube Street Headers incorporate smooth-radius primary runners, optimised collectors and high-flow catalytic converters.
These components are designed to reduce unnecessary restrictions and improve exhaust gas movement.
2. Increased Performance Potential
SOUL Performance reports third-party dynamometer testing of its Long Tube Street Headers on a Dyno Dynamics dynamometer.
The manufacturer's published figures include:
- Approximately
30 wheel horsepower improvement in a tested configuration with
supporting ECU tuning.
Approximately - Approximately 12 wheel horsepower incremental improvement attributed to the Street Headers after the ECU tune had been applied.
These figures relate to the Street Headers' published testing and should not be presented as independently verified gains for the complete Street Package.
Actual performance depends on the vehicle, ECU calibration, engine condition and other modifications.
3. Sharper Throttle Response
The freer-flowing headers are designed to help the engine respond more efficiently to accelerator input.
This can enhance the driving experience during acceleration, particularly at higher engine speeds.
4. Enhanced Flat-Six Sound
The combination of the long-tube headers and valved rear exhaust creates a more pronounced engine note.
The system is designed to highlight the naturally aspirated engine's characteristic sound without requiring permanently loud exhaust operation.
5. Selectable Exhaust Volume
The electronically controlled exhaust valves allow different exhaust sound modes.
This provides additional flexibility compared with a fixed, non-valved exhaust arrangement.
6. High-Flow Catalytic Converters
Unlike the catalyst-free Competition Package, the Street Package incorporates high-flow catalytic converters.
These provide catalytic exhaust treatment while being designed to reduce restriction.
However, their presence does not guarantee compliance with UK emissions, MOT or other public-road requirements.
7. Reduced Unwanted Drone
The SOUL mufflers incorporate sound-absorbing materials intended to minimise cabin resonance.
This is particularly beneficial during steady-speed driving.
8. Durable Stainless Steel Construction
The headers and rear exhaust use T304L stainless steel.
This material offers corrosion resistance and durability under repeated heating and cooling cycles.
9. Factory Exhaust Valve Control Compatibility
The Valved Exhaust System is designed to integrate with the appropriate original Porsche exhaust valve controls.
The driver can continue using the familiar factory exhaust control button.
10. Complete Integrated Upgrade
The package combines the Long Tube Street Headers and Valved Exhaust System in one manufacturer's exhaust solution.
This helps ensure the components are designed to work together.
11. Premium Exhaust Tip Options
A variety of stainless steel and titanium exhaust tips allows the owner to personalise the vehicle's rear appearance.
12. Manufacturer Warranty
SOUL Performance provides a lifetime warranty for the included exhaust components, subject to its published warranty conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.GT4.STPKG.SWT
The product you are viewing cross references to these numbers
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
The SOUL Performance Street Package is a premium aftermarket exhaust upgrade developed specifically for the Porsche 981 Cayman GT4, Boxster Spyder and GT4 Clubsport models manufactured between 2015 and 2016.
Fits:
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
Designed for the naturally aspirated 3.8-litre flat-six engine, this comprehensive package combines SOUL Performance Long Tube Street Headers with its electronically controlled Valved Exhaust System.
The package replaces the original exhaust manifold and catalytic converter assemblies, together with the factory rear exhaust system, to provide an integrated high-performance exhaust arrangement.
Unlike the SOUL Competition Package, which removes the factory catalytic converters, the Street Package incorporates high-flow catalytic converters within its long-tube headers.
These converters are designed to provide a less restrictive exhaust path while retaining catalytic exhaust treatment.
The headers feature 2-inch primary runners, smooth-radius tubing, port-matched mounting flanges and optimised collectors to support efficient exhaust gas movement away from the engine.
Manufactured from T304L stainless steel, the headers are engineered for durability, corrosion resistance and repeated exposure to high exhaust temperatures.
The accompanying SOUL Valved Exhaust System uses mandrel-bent stainless steel tubing, specially developed rear silencers and electronically controlled exhaust valves.
With the exhaust valves closed, gases are directed through sound-absorbing mufflers that reduce unwanted exhaust resonance and help maintain a more refined driving experience.
With the valves open, exhaust gases follow a more direct path, producing a louder, more pronounced flat-six soundtrack.
This dual-character design allows the driver to enjoy a sporting exhaust note while retaining the flexibility of selectable exhaust operation.
The package is designed to integrate with the appropriate original Porsche exhaust valve controls, allowing the driver to continue using the factory exhaust button.
The Street Package is designed for direct bolt-on installation on compatible vehicles, with manufacturer-supplied fitting instructions.
SOUL Performance also reports measurable performance improvements from its Long Tube Street Headers when combined with suitable ECU tuning.
Backed by the manufacturer's lifetime warranty, subject to the applicable terms, this package offers a comprehensive exhaust upgrade for owners seeking enhanced engine response, a more engaging flat-six sound and an integrated stainless steel exhaust system.
What This Product Does:
The Street Package replaces the original exhaust manifolds,
catalytic converter assemblies and rear exhaust system with components designed
to improve exhaust flow and provide selectable exhaust sound characteristics.
It consists of two main systems.
1. SOUL Performance Long Tube Street Headers
The Long Tube Street Headers collect exhaust gases as they leave the engine's cylinder heads.
They replace the original Porsche exhaust manifolds and catalytic converters with a stainless steel assembly incorporating long primary runners, optimised collectors and high-flow catalytic converters.
Their main functions include:
Collecting
exhaust gases: Direct combustion gases away from the cylinder heads.
Improving
exhaust flow: Use smooth-radius runners and carefully developed
collectors.
Supporting
exhaust scavenging: Encourage efficient exhaust pulse movement through
the primary pipes.
Reducing
unnecessary restriction: Use high-flow catalytic converters designed
for improved gas flow.
Supporting
engine performance: Help the naturally aspirated engine breathe more
efficiently.
Improving
throttle response: Support more responsive engine behaviour during
acceleration.
Enhancing
exhaust sound: Alter the exhaust pulse characteristics to create a
stronger flat-six tone.
Retaining
catalytic treatment: Pass exhaust gases through integrated high-flow
catalytic converters.
Supporting
high-RPM operation: Use a runner and collector design developed for
the GT4's 3.8L engine.
Providing
durability: Use stainless steel construction for demanding exhaust
operating conditions.
2. SOUL Performance Valved Exhaust System
The Valved Exhaust System receives gases from the headers and directs them through the rear exhaust assembly.
Its electronically controlled valves provide two different exhaust sound characteristics.
The main functions include:
Directing
exhaust gases towards the rear outlets.
Providing
selectable exhaust sound modes.
Reducing
unwanted resonance with the valves closed.
Producing
a more aggressive exhaust note with the valves open.
Supporting
efficient exhaust flow through mandrel-bent tubing.
Maintaining
compatibility with the applicable factory exhaust valve controls.
Providing
durable stainless steel rear silencers.
Enhancing
the vehicle's rear appearance through selectable exhaust tips.
Why Upgrading Matters:
The SOUL Performance Street Package provides a comprehensive
exhaust upgrade designed to improve exhaust flow, engine response and driving
enjoyment.
1. Improved Exhaust Flow
The Long Tube Street Headers incorporate smooth-radius primary runners, optimised collectors and high-flow catalytic converters.
These components are designed to reduce unnecessary restrictions and improve exhaust gas movement.
2. Increased Performance Potential
SOUL Performance reports third-party dynamometer testing of its Long Tube Street Headers on a Dyno Dynamics dynamometer.
The manufacturer's published figures include:
- Approximately
30 wheel horsepower improvement in a tested configuration with
supporting ECU tuning.
Approximately - Approximately 12 wheel horsepower incremental improvement attributed to the Street Headers after the ECU tune had been applied.
These figures relate to the Street Headers' published testing and should not be presented as independently verified gains for the complete Street Package.
Actual performance depends on the vehicle, ECU calibration, engine condition and other modifications.
3. Sharper Throttle Response
The freer-flowing headers are designed to help the engine respond more efficiently to accelerator input.
This can enhance the driving experience during acceleration, particularly at higher engine speeds.
4. Enhanced Flat-Six Sound
The combination of the long-tube headers and valved rear exhaust creates a more pronounced engine note.
The system is designed to highlight the naturally aspirated engine's characteristic sound without requiring permanently loud exhaust operation.
5. Selectable Exhaust Volume
The electronically controlled exhaust valves allow different exhaust sound modes.
This provides additional flexibility compared with a fixed, non-valved exhaust arrangement.
6. High-Flow Catalytic Converters
Unlike the catalyst-free Competition Package, the Street Package incorporates high-flow catalytic converters.
These provide catalytic exhaust treatment while being designed to reduce restriction.
However, their presence does not guarantee compliance with UK emissions, MOT or other public-road requirements.
7. Reduced Unwanted Drone
The SOUL mufflers incorporate sound-absorbing materials intended to minimise cabin resonance.
This is particularly beneficial during steady-speed driving.
8. Durable Stainless Steel Construction
The headers and rear exhaust use T304L stainless steel.
This material offers corrosion resistance and durability under repeated heating and cooling cycles.
9. Factory Exhaust Valve Control Compatibility
The Valved Exhaust System is designed to integrate with the appropriate original Porsche exhaust valve controls.
The driver can continue using the familiar factory exhaust control button.
10. Complete Integrated Upgrade
The package combines the Long Tube Street Headers and Valved Exhaust System in one manufacturer's exhaust solution.
This helps ensure the components are designed to work together.
11. Premium Exhaust Tip Options
A variety of stainless steel and titanium exhaust tips allows the owner to personalise the vehicle's rear appearance.
12. Manufacturer Warranty
SOUL Performance provides a lifetime warranty for the included exhaust components, subject to its published warranty conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.GT4.STPKG.SLTT
The product you are viewing cross references to these numbers
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
The SOUL Performance Bolt-On X-Pipe with Exhaust Tips is a premium aftermarket exhaust upgrade for Porsche Boxster and Cayman 987.2 and 981 models manufactured between 2009 and 2016.
Fits:
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
Designed to replace the original T-shaped exhaust outlet section, this system incorporates a smooth-flowing cast stainless steel X-pipe and a choice of exhaust tip styles and finishes.
The original Porsche rear exhaust outlet uses a T-shaped configuration that brings the exhaust gas streams together before they exit the vehicle.
SOUL Performance has developed an alternative X-pipe design intended to create a smoother transition between the exhaust streams, reducing turbulence at the outlet junction.
The result is a more efficient exhaust outlet arrangement with a deeper, smoother and more sporting sound.
Manufactured using cast T304L stainless steel, the X-pipe features smooth internal passages designed to promote exhaust flow and eliminate protruding weld material within the central crossover section.
The cast design also provides a robust construction intended to withstand repeated heating and cooling cycles, exhaust vibration and demanding driving conditions.
Rather than requiring the replacement of the entire rear silencer system, this product is designed to attach directly to the existing compatible factory exhaust.
This makes it an attractive upgrade for Porsche owners who appreciate the sound and character of their existing exhaust but want improved styling and a different exhaust tone.
A variety of exhaust tip designs and finishes allows the rear appearance to be personalised.
Depending on the selected configuration, available options include single-wall stainless steel tips, double-wall chrome-style tips and lightweight titanium tips.
The X-pipe is compatible with both standard factory exhaust systems and Porsche Sport Exhaust (PSE), retaining the existing rear silencer arrangement.
SOUL Performance designs its exhaust products for both road and track applications and provides a manufacturer's lifetime warranty, subject to the applicable warranty terms.
Ideal for Porsche enthusiasts seeking an exhaust styling upgrade, a more distinctive engine note and improved outlet flow without installing a complete aftermarket exhaust system.
What This Product Does:
The SOUL Performance X-pipe replaces the original T-shaped exhaust outlet junction with a smoother crossover design.
On the original system, exhaust gases from the two rear silencer outlets meet within the factory T-section before passing through the exhaust tips.
The SOUL X-pipe provides a more gradual path for these gases to merge and exit the vehicle.
This design is intended to reduce turbulence and produce a smoother exhaust flow.
Its primary functions include:
- Improving exhaust outlet flow: Provides a smoother internal route for exhaust gases leaving the rear silencers.
- Reducing turbulence: Replaces the factory T-junction with an X-shaped crossover.
- Refining the exhaust note: Produces a smoother and deeper exhaust character.
- Enhancing sporting sound: Adds a more pronounced exhaust tone, particularly during acceleration.
- Maintaining the factory rear silencers: Allows the original mufflers to remain installed.
- Preserving PSE compatibility: Works with Porsche Sport Exhaust-equipped vehicles.
- Improving rear-end styling: Replaces the factory exhaust outlet appearance with selected aftermarket tips.
- Providing exhaust tip customisation: Allows different styles, materials and finishes.
- Supporting efficient gas flow: Uses a smooth cast internal design to minimise unnecessary restrictions at the outlet junction.
- Providing durable construction: Uses stainless steel designed for exhaust-system conditions.
The X-pipe changes the outlet arrangement rather than replacing the catalytic converters, exhaust manifolds or complete rear silencer system.
Exhaust Sound Characteristics:
SOUL Performance describes the X-pipe as producing a more refined exhaust note.
Depending on the vehicle's engine, existing exhaust specification and selected driving mode, owners may notice:
- A deeper exhaust tone at idle.
- A fuller and more sporting sound during acceleration.
- A smoother exhaust character at higher engine speeds.
- More noticeable exhaust character under load.
- A change in the tonal balance of the original exhaust.
Why Upgrading Matters:
Many Porsche Boxster and Cayman owners choose the SOUL Performance X-Pipe even when their original exhaust outlet remains in good working condition.
The upgrade is designed to improve exhaust character and visual appearance without requiring the installation of a full aftermarket exhaust system.
Replacing the factory outlet arrangement with the SOUL X-pipe offers several benefits.
Improved Exhaust Flow
- The original T-shaped outlet brings the exhaust streams together through a comparatively abrupt junction.
- SOUL's cast X-pipe uses smooth internal passages to create a more gradual flow path.
- This is intended to reduce turbulence at the outlet and improve the efficiency of the exhaust junction.
Enhanced Exhaust Sound
- The X-pipe changes the way exhaust pulses interact before leaving the vehicle.
- This can create a deeper and smoother exhaust note, adding character while retaining the existing rear silencers.
Customised Rear Appearance
- The original exhaust tips can be replaced with a selection of premium tip designs.
- This allows owners to personalise the rear appearance of their Porsche with different finishes and shapes.
Retention of the Factory Exhaust
- The X-pipe is designed to bolt onto the compatible factory exhaust or Porsche Sport Exhaust system.
- This allows owners to modify the exhaust outlet without replacing the complete rear silencer assembly.
Durable Stainless Steel Construction
- The cast T304L stainless steel X-pipe provides a corrosion-resistant design for demanding exhaust operating conditions.
- Its smooth cast crossover avoids internal weld protrusions that could otherwise interfere with the exhaust gas path.
Potential Performance Benefits
- SOUL Performance states that the improved flow arrangement may contribute to minor improvements in performance and cruising efficiency.
- However, specific horsepower, torque or fuel economy gains are not guaranteed, and the manufacturer does not publish a verified performance figure for every individual application.
- The primary benefits should therefore be regarded as improved outlet flow, exhaust tone and appearance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.BC.XT.
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
Shop Securely
12 Month Warranty
Worldwide Delivery
The Soul Performance Products Competition Package for the Porsche 981 Boxster and Cayman is engineered by enthusiasts, for enthusiasts. By combining the superior flow of SOUL Competition Headers with the x-pipe efficiency of the Valved Exhaust System, we’ve created the ultimate balance of performance, sound, and drivability—perfect for both street and track use. With the valves closed, the exhaust note remains refined and comfortable, ideal for daily driving without fatigue from excess volume or drone. Open the valves, and the system unleashes the flat-six engine’s raw character—delivering an intoxicating, aggressive symphony that commands attention as it exits through your choice of stylish exhaust tips.
Package Includes:
• SOUL Performance Products Valved Exhaust System
• SOUL Performance Products Competition Headers
• Fits all Porsche 981 Boxster / Cayman models (2013–2016)
• Direct bolt-on installation with included instructions
• Wide selection of tip styles and finishes, with custom options available
• Covered by SOUL’s Lifetime Warranty for street and track use
POWER:
Testing was conducted on a Mustang Dyno using a vehicle equipped with race headers, a Porsche Sport Exhaust System, and a custom tune as the baseline. With the Soul Performance Products Competition Package installed, the car gained 11 wheel horsepower and 9 ft-lbs of torque—with the potential for even greater gains when paired with a custom retune.
CONSTRUCTION:
Our precision-engineered headers are crafted from premium T304L stainless steel and designed to deliver maximum performance. Key features include port-matched flanges, smooth-radius primary tubing, and collectors optimized for efficient exhaust flow—all working together to unlock proven power gains.
Each system is mandrel-bent from T304L stainless steel tubing, fitted with mufflers reinforced for long-term durability, and thoroughly inspected before shipping to ensure uncompromising quality. For the finishing touch, choose from a wide selection of 321 stainless steel exhaust tips in various styles and finishes—or contact us to create a fully customized set.
BOLT ON AND GO:
Each product is fixture-tested to guarantee a precise fit, then securely foam-packed to ensure it arrives in perfect condition. Detailed installation instructions are included, making the process straightforward and achievable for most DIY enthusiasts.
LIFETIME WARRANTY:
Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to resolve any questions or issues that you may have.
NOTES
+ This package may trigger a check engine light due to catalyst removal
+ This package is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for off road use only
Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.981.COPKG
The product you are viewing cross references to these numbers
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
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12 Month Warranty
Worldwide Delivery
Offering the greatest gains in power and sound, SOUL Competition Headers for the Porsche 981 are an excellent performance upgrade from the heavy and restrictive stock manifolds. You’ll notice the 11 lb weight savings, decreased operating temperatures, and improved engine response all while separating your car from the crowd with the increase in tone.
• Fits all Porsche 981 Cayman / Boxster vehicles (2013-2016)
• Direct bolt on installation – instructions included
• Constructed from 14-16ga T304L stainless steel tubing
• All SOUL Performance Products components are backed by a renowned Lifetime Warranty for both street and track use
DEVELOPMENT AND TESTING:
By creating a unique application for the 981 platform, we’ve focused on sizing the runners (2”) and collectors correctly to extract maximum power from the 3.4L engine while producing great gains from the 2.7L as well.
DYNO RESULTS:
A 981 Cayman S with SOUL Valved Exhaust, intake, and ECU tune added Competition Headers and IPD plenum and GT3 throttle body for comparison. Comparing the average performing run of both sessions shows gains of 26 whp (303->329) and 24 ft-lbs of torque (276->300).
CONSTRUCTION:
Our precision engineered headers are meticulously fabricated from T304L stainless steel. Proven design elements including port matched flanges, smooth radius primary tubing, and collectors that optimize the exhaust flow all work in conjunction to maximize power gains. Every set is rigorously quality-checked prior to shipping.
BOLT ON AND GO:
Each exhaust is tested in a fixture to ensure perfect fitment and then foam packed to arrive in perfect condition. Thorough installation instructions are included in the box for a straightforward install that can be performed by most DIY enthusiasts. New high grade hardware is included.
CHECK ENGINE LIGHT?: This product may trigger a check engine light due to removal of factory catalytic converters. O2 Spacers are available to reduce any chances of triggering a CEL. We suggest a custom ECU tune to disable any check engine lights (for track use only).
LIFETIME WARRANTY:
Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to resolve any issues or answer any questions that you may have.
NOTE:
+ This product is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for off road use only due to removal of factory catalytic converters
Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.981.COH
The product you are viewing cross references to these numbers
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
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12 Month Warranty
Worldwide Delivery
The SOUL Performance Competition Headers are premium aftermarket performance exhaust manifolds designed specifically for the Porsche 981 Cayman GT4, Boxster Spyder and GT4 Clubsport models manufactured between 2015 and 2016.
Fits:
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
Developed for the naturally aspirated 3.8-litre flat-six engine, these competition-specification headers replace the original Porsche exhaust manifold and catalytic converter assemblies with a freer-flowing stainless steel exhaust arrangement.
The factory exhaust system is engineered to balance engine performance, emissions control, noise restrictions and everyday usability. Although highly capable, the original exhaust manifolds and catalytic converters introduce resistance into the exhaust path.
SOUL Performance's Competition Headers are designed to reduce this restriction and improve the movement of exhaust gases away from the cylinder heads.
Each header incorporates 2-inch primary runners, smooth-radius tubing, port-matched mounting flanges and optimised collectors to help improve exhaust gas flow.
The long-runner design is engineered to complement the characteristics of Porsche's high-revving 3.8-litre engine, supporting improved engine breathing and throttle response.
Manufactured from T304L stainless steel, the headers offer corrosion resistance, strength and durability under demanding exhaust operating temperatures.
Unlike SOUL Performance's separately available Long Tube Street Headers, the Competition Headers do not incorporate catalytic converters.
This catalyst-free construction reduces exhaust restriction and produces a more pronounced exhaust note, making the product particularly suitable for dedicated off-road and motorsport applications.
SOUL Performance reports third-party dynamometer testing demonstrating measurable performance improvements when these headers are combined with suitable ECU tuning.
The headers are designed as a direct bolt-on replacement for the compatible factory manifold assemblies. Each set is checked in an installation fixture before dispatch, and fitting instructions are supplied.
The Competition Headers can also form part of the complete SOUL Performance Competition Package when combined with the manufacturer's compatible valved rear exhaust system.
For Porsche enthusiasts seeking increased exhaust flow, improved throttle response and a more aggressive flat-six soundtrack, the SOUL Performance Competition Headers provide a substantial upgrade to the original exhaust manifold arrangement.
What This Product Does:
Exhaust headers collect combustion gases as they leave the engine's cylinder heads and direct them into the remainder of the exhaust system.
On the Porsche 981 GT4 and Boxster Spyder, exhaust gases leave the naturally aspirated 3.8L flat-six engine through the exhaust ports before passing into the original exhaust manifolds and catalytic converter assemblies.
The SOUL Performance Competition Headers replace these original assemblies with stainless steel performance headers.
Their primary purpose is to improve the efficiency with which exhaust gases leave the engine.
The main functions include:
- Collecting exhaust gases: Direct spent combustion gases away from the cylinder heads.
- Improving exhaust flow: Provide smoother internal gas passages to reduce unnecessary restriction.
- Supporting exhaust scavenging: Use runner length and collector geometry to encourage efficient exhaust pulse movement.
- Reducing exhaust backpressure: Remove restrictions associated with the original catalytic converter assemblies.
- Improving engine responsiveness: Support sharper throttle response under acceleration.
- Increasing performance potential: Help the engine breathe more efficiently, particularly at higher engine speeds.
- Enhancing exhaust sound: Produce a louder, more distinctive naturally aspirated flat-six soundtrack.
- Supporting high-RPM operation: Use runner dimensions selected for the characteristics of the 3.8L engine.
- Reducing component weight: Offer weight-saving potential compared with the original exhaust assemblies.
- Supporting performance tuning: Complement suitable ECU calibration and other compatible exhaust upgrades.
- Maintaining downstream exhaust connection: Fit to the appropriate original or compatible aftermarket rear exhaust arrangement.
- Providing durability: Use stainless steel components designed for high-temperature exhaust conditions.
Why Replacement Matters:
The SOUL Performance Competition Headers are designed for Porsche owners seeking a more performance-focused exhaust configuration.
Their principal advantages are improved exhaust flow, increased performance potential and enhanced engine sound.
1. Improved Exhaust Gas Flow
The headers use smooth-radius primary tubing, port-matched flanges and optimised collectors.
These design features are intended to reduce turbulence and help exhaust gases travel efficiently away from the cylinder heads.
2. Reduced Exhaust Restriction
Removing the original catalytic converters eliminates a significant source of resistance in the exhaust path.
This creates a freer-flowing arrangement intended to support the high-revving characteristics of the 3.8L flat-six engine.
The corresponding loss of emissions control means the product is restricted to suitable off-road applications.
3. Increased Horsepower Potential
SOUL Performance reports testing carried out using a Dyno Dynamics dynamometer.
The manufacturer states that:
Approximately 40 wheel horsepower was gained in the tested configuration when combined with ECU tuning. Approximately 20 wheel horsepower of additional improvement was attributed to installing the Competition Headers after the tune had been applied.
These figures relate to the manufacturer's published test configuration.
Actual results depend on the vehicle, ECU calibration, engine condition and other installed modifications.
No specific horsepower gain is guaranteed for an otherwise standard vehicle.
4. Sharper Throttle Response
A freer-flowing exhaust can improve the engine's response to accelerator input.
This may be particularly noticeable when accelerating through the middle and upper sections of the engine's rev range.
5. More Aggressive Flat-Six Sound
The Competition Headers change the exhaust flow path and remove the sound attenuation associated with the factory catalytic converters.
This can produce a louder, more immediate and more pronounced exhaust note.
The final sound will also depend on the rear exhaust system installed.
6. Stainless Steel Construction
The headers are fabricated from T304L stainless steel.
This material provides corrosion resistance and durability in demanding, high-temperature exhaust environments.
7. Weight-Saving Potential
SOUL Performance identifies reduced weight as a benefit of the Competition Headers compared with the original components.
The precise total saving should be confirmed for the vehicle's original exhaust specification rather than assumed from other header products.
8. Direct Bolt-On Installation
The headers are designed to replace the original assemblies without bespoke exhaust fabrication on a compatible vehicle.
SOUL Performance tests each set in a fixture to check fitment and supplies installation instructions.
9. Compatibility with Additional Performance Upgrades
These headers may be combined with suitable rear exhaust systems and an appropriate motorsport ECU calibration.
They are also used as part of SOUL Performance's dedicated Competition Package.
10. Manufacturer Warranty
SOUL Performance provides a lifetime warranty for its Competition Headers, subject to the manufacturer's published warranty conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.GT4.COH
The product you are viewing cross references to these numbers
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
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12 Month Warranty
Worldwide Delivery
The SOUL Performance Products Long Tube Street Headers are engineered with large-diameter, free-flowing catalytic converters and extended tube runners to deliver maximum gains in horsepower, throttle response, and the signature flat-six soundtrack. Enjoy noticeable performance improvements—without triggering a check engine light!
• Fits all Porsche 981 Cayman / Boxster vehicles (2013-2016)
• Added performance without a check engine light
• Direct bolt on installation – instructions included
• All Soul Performance Products components are backed by a renowned Lifetime Warranty for both street and track use
DEVELOPMENT & TESTING:
Designed specifically for the Porsche 981 platform, these headers feature carefully sized 2” runners and optimized collectors to unlock maximum power from the 3.4L engine, while still delivering impressive gains for the 2.7L.
CONSTRUCTION:
Each header is handcrafted from T304L stainless steel and undergoes rigorous in-house quality checks. Key design elements—such as port-matched flanges, smooth-radius primary tubing, and precision collectors—work together to enhance exhaust flow and maximize performance.
BOLT-ON INSTALLATION:
Every set is fixture-tested for perfect fitment and securely foam-packed for safe delivery. Detailed instructions are included, making installation straightforward for most DIY enthusiasts.
LIFETIME WARRANTY:
Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to resolve any issues or answer any questions that you may have.
NOTE:
+ This product is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for off road use only
NOTE: Sports catalytic converters and bypass pipes do not have type approval and are not legally permitted for use on vehicles manufactured after 1st March 2001 in the United Kingdom. They are not MOT compliant and must not be used on public roads. These components are intended for race and track use only. If you are located outside the UK, please consult your local laws and regulations to ensure compliance.
Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.981.STH
The product you are viewing cross references to these numbers
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
Shop Securely
12 Month Warranty
Worldwide Delivery
The SOUL Performance Long Tube Street Headers are high-performance aftermarket exhaust manifolds developed specifically for the Porsche 981 Cayman GT4, Boxster Spyder and GT4 Clubsport models manufactured between 2015 and 2016.
Fits:
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
Designed for the naturally aspirated 3.8L flat-six engine, these headers replace the original exhaust manifold and catalytic converter assemblies with a carefully engineered long-tube exhaust system incorporating high-flow catalytic converters.
The original Porsche exhaust system is designed to balance performance, emissions, noise restrictions and everyday usability.
SOUL Performance's long-tube headers are designed to improve exhaust flow and engine response by using longer, smoother exhaust runners and optimised collectors.
Each header assembly features 2-inch primary runners, smooth-radius tubing and port-matched mounting flanges to help exhaust gases flow efficiently from the cylinder heads.
The headers are constructed from T304L stainless steel, providing excellent corrosion resistance and durability under demanding exhaust operating conditions.
High-flow catalytic converters are incorporated into the system, allowing improved exhaust flow while retaining a catalytic treatment stage rather than adopting a fully decatted design.
The long-tube configuration is particularly beneficial on a high-revving naturally aspirated engine because exhaust gas velocity, pulse timing and collector design influence engine breathing and the delivery of power across the rev range.
SOUL Performance has developed this product to complement the characteristics of the Porsche 981 GT4 and Spyder's 3.8L engine.
The result is a performance-focused exhaust upgrade intended to improve throttle response, enhance high-RPM engine performance and produce a more pronounced flat-six exhaust note.
Unlike a complete exhaust replacement, these headers replace the exhaust manifold and catalyst sections while allowing the compatible downstream exhaust to remain in place.
The product is manufactured using precision fabrication methods and is checked in a dedicated fixture to maintain accurate installation fitment.
SOUL Performance supplies installation instructions and offers a manufacturer's lifetime warranty, subject to its published conditions.
Ideal for Porsche enthusiasts seeking improved engine response, stronger performance and a more engaging exhaust character, these Long Tube Street Headers provide a substantial upgrade to the factory exhaust manifold arrangement.
What This Product Does:
The exhaust headers collect combustion gases leaving the engine's cylinder heads and direct them into the remainder of the exhaust system.
In a naturally aspirated flat-six engine, the design of the exhaust runners and collectors can influence how efficiently exhaust gases leave the cylinders.
Reducing unnecessary restrictions and improving exhaust pulse behaviour can help the engine expel spent gases and prepare for the next intake and combustion cycle.
The SOUL Performance Long Tube Street Headers are designed to improve this process through their runner length, primary diameter and collector geometry.
Their main functions include:
- Collecting exhaust gases: Direct exhaust gases away from the engine's cylinder heads.
- Improving exhaust flow: Use smooth-radius tubing and optimised collectors to reduce unnecessary restrictions.
- Supporting exhaust scavenging: Help exhaust pulses travel through the runners in a more efficient manner.
- Improving throttle response: Support more responsive engine behaviour under acceleration.
- Increasing performance potential: Enable improved engine breathing, particularly at higher engine speeds.
- Enhancing exhaust sound: Produce a stronger, more distinctive flat-six exhaust character.
- Maintaining catalytic treatment: Incorporate high-flow catalytic converters in the exhaust path.
- Supporting high-RPM operation: Use runner and collector dimensions selected for the 3.8L GT4 engine.
- Maintaining downstream exhaust compatibility: Connect to the appropriate existing rear exhaust system.
- Providing durable exhaust construction: Use corrosion-resistant stainless steel designed for elevated temperatures.
- Supporting performance tuning: Provide improved exhaust flow that may complement a correctly developed ECU calibration.
- Enhancing driving engagement: Deliver a more pronounced engine response and soundtrack.
Why Upgrading Matters:
Replacing the original exhaust manifold and catalyst assemblies with SOUL Performance Long Tube Street Headers is primarily a performance-focused modification.
The upgrade is intended to improve exhaust efficiency, increase engine responsiveness and enhance the naturally aspirated Porsche flat-six soundtrack.
Improved Exhaust Flow
- The long-tube runners, smooth-radius bends and optimised collectors are designed to improve the movement of exhaust gases away from the cylinder heads.
- This helps reduce unwanted restrictions within the header assembly and supports more efficient engine breathing.
Increased Performance Potential
- SOUL Performance developed these headers specifically for the 3.8L engine used in the 981 Cayman GT4 and Boxster Spyder.
- The manufacturer reports independent Dyno Dynamics testing showing approximately 30 whp of improvement in a tuned configuration, including 12 whp of additional gain from the headers when tested after tuning.
- These results reflect the particular test vehicle and configuration. Individual results will vary.
Sharper Throttle Response
- Improved exhaust flow can contribute to more responsive engine behaviour, particularly when accelerating through the middle and upper engine speed ranges.
Enhanced Flat-Six Exhaust Sound
- The header design changes how exhaust gases travel through the system.
- This can produce a fuller, more pronounced and more sporting exhaust note.
- The final sound depends on whether the vehicle uses the original Porsche rear exhaust or another compatible aftermarket system.
High-Flow Catalytic Converter Design
- The integrated catalytic converters allow a performance-focused exhaust arrangement without removing the catalytic treatment stage entirely.
- Nevertheless, the manufacturer does not certify the product for all emissions-controlled road applications.
Stainless Steel Durability
- T304L stainless steel offers corrosion resistance and durability under repeated heating and cooling cycles.
Factory-Style Installation
- SOUL Performance designs these headers as a direct bolt-on replacement for the corresponding original exhaust manifold arrangement.
- No bespoke exhaust fabrication is advertised for a standard compatible installation, although access and removal of corroded hardware can make the work demanding.
Long-Term Performance Upgrade
- For Porsche owners seeking greater performance and a more distinctive driving experience, these headers offer an upgrade to a major part of the engine's exhaust system.
The product may also complement suitable ECU tuning and other performance exhaust modifications.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.GT4.STH
The product you are viewing cross references to these numbers
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
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12 Month Warranty
Worldwide Delivery
The SOUL Performance Long Tube Street Headers are high-performance aftermarket exhaust manifolds developed specifically for Porsche 987.2 Boxster and Cayman models manufactured between 2009 and 2012.
Fits:
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Designed for the naturally aspirated 2.9-litre and 3.4-litre flat-six engines, these headers replace the original Porsche exhaust manifold and catalytic converter assemblies with a freer-flowing stainless steel design incorporating high-flow catalytic converters.
The factory exhaust system is engineered to balance performance, emissions control, noise regulations and everyday usability. SOUL Performance developed its Long Tube Street Headers to improve exhaust gas flow and enhance the engine's characteristic sound while retaining catalytic exhaust treatment.
Each header features 2-inch primary runners, carefully formed bends, port-matched mounting flanges and optimised exhaust collectors.
The long-tube design is intended to help exhaust gases leave the cylinder heads more efficiently, supporting improved engine breathing and throttle response.
The headers are manufactured from T304L stainless steel, providing corrosion resistance, strength and durability under demanding exhaust operating temperatures.
Large-diameter, free-flowing catalytic converters are incorporated into the assemblies to reduce exhaust restriction compared with the manufacturer's intended factory baseline while retaining a catalytic treatment stage.
Unlike catalyst-free Competition Headers, the SOUL Long Tube Street Headers maintain catalytic converters within the exhaust system.
They are specifically developed for the Porsche 987.2 platform, with the primary runner diameter and collector geometry selected to complement the performance characteristics of both the 2.9L and 3.4L engines.
SOUL Performance reports dynamometer testing on its project Cayman S equipped with PDK transmission and a compatible SOUL Valved Exhaust System.
The manufacturer recorded improvements in wheel horsepower and torque around 4,100 RPM, although the figures published in different sections of its product page vary.
In addition to improved exhaust flow, the headers are designed to produce a stronger, fuller and more distinctive flat-six exhaust note.
The final sound depends on the installed rear exhaust system, engine specification and driving conditions.
Each header assembly is quality-checked, tested in an installation fixture and supplied with fitting instructions.
New high-grade hardware for the header-to-exhaust flange connections is included.
SOUL Performance also offers an optional copper exhaust header gasket set for installation.
The system is designed as a direct bolt-on replacement for the compatible original exhaust manifold arrangement, without requiring bespoke fabrication in a standard installation.
Backed by the SOUL Performance lifetime warranty, subject to the manufacturer's conditions, these headers provide an attractive upgrade for enthusiasts seeking improved exhaust flow, enhanced throttle response and a more engaging engine soundtrack.
What This Product Does:
Exhaust headers collect combustion gases from the engine's cylinder heads and direct them towards the remainder of the exhaust system.
The Porsche 987.2 Boxster and Cayman use naturally aspirated flat-six engines, where efficient exhaust gas movement is important for engine breathing and power delivery.
The SOUL Long Tube Street Headers replace the original manifold and catalytic converter assemblies with longer primary runners and improved collector geometry.
Their main functions include:
- Collecting exhaust gases: Direct gases away from the engine's cylinder heads.
- Improving exhaust flow: Provide smoother internal passages to reduce unnecessary restriction.
- Supporting exhaust scavenging: Use runner length and collector design to encourage efficient exhaust pulse movement.
- Enhancing throttle response: Support improved engine responsiveness during acceleration.
- Increasing performance potential: Help the engine breathe more efficiently, particularly under load.
- Supporting mid-range performance: Provide an exhaust arrangement developed to improve torque delivery.
- Enhancing flat-six sound: Produce a fuller and more pronounced exhaust note.
- Retaining catalytic treatment: Pass exhaust gases through integrated high-flow catalytic converters.
- Reducing exhaust restriction: Use large-diameter catalysts and smooth-flowing tubing.
- Maintaining downstream connections: Connect to a compatible rear exhaust system.
- Providing durable construction: Use corrosion-resistant T304L stainless steel.
- Supporting performance modifications: Complement compatible rear exhaust upgrades and appropriate engine tuning.
Why Upgrading Matters:
1. Improved Exhaust Gas Flow
The headers use long primary runners, smooth-radius tubing and optimised collectors to improve exhaust gas movement away from the cylinder heads.
This helps reduce unnecessary restriction in the exhaust path.
2. Improved Throttle Response
SOUL designed the header geometry to support more responsive engine behaviour.
Improved exhaust flow may be noticeable during acceleration, particularly as engine speed increases.
3. Increased Performance Potential
SOUL Performance reports dyno testing on a Porsche 987.2 Cayman S equipped with PDK transmission and its Valved Exhaust System.
The manufacturer publishes gains around 4,100 RPM, with figures ranging from 7–8 wheel horsepower and 8–11 lb-ft of torque in different sections of the listing.
These are manufacturer-reported results for the tested configuration, not guaranteed gains from the headers alone.
4. Enhanced Flat-Six Exhaust Sound
The long-tube design changes the movement of exhaust pulses through the system.
This is intended to produce a fuller, more pronounced engine note, particularly during acceleration and higher engine speeds.
5. High-Flow Catalytic Converter Design
The headers incorporate large-diameter catalytic converters designed to provide an improved flow path while retaining catalytic exhaust treatment.
They are distinct from SOUL's catalyst-free Competition Headers.
6. Durable Stainless Steel Construction
T304L stainless steel offers corrosion resistance and suitability for repeated high-temperature operation.
The components are quality-checked before dispatch.
7. Weight Reduction Potential
SOUL reports a lower header weight than the original factory assemblies.
The manufacturer lists 26.25 lb for the factory headers and 24.45 lb for the SOUL headers, indicating a total reduction of approximately 1.8 lb (0.82 kg).
The listing also gives an inconsistent metric conversion, so the imperial figures should be used if quoting the manufacturer's weights.
8. Direct Bolt-On Installation
The headers are designed for the original compatible mounting arrangement.
SOUL checks each set in an installation fixture and includes fitting instructions.
9. Compatibility with Performance Exhaust Systems
The headers can be paired with the manufacturer's compatible Valved Exhaust System or other suitable downstream exhaust arrangements, subject to fitment verification.
10. Manufacturer Lifetime Warranty
SOUL Performance provides a lifetime warranty for its exhaust components, subject to its published warranty conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.9872.STH
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
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12 Month Warranty
Worldwide Delivery
High quality mufflers offer a refined, sporty tone with minimal drone. Gain the enhanced response, character, and sound that your Porsche deserves.
• Fits all Porsche 981 Boxster / Cayman models (2013–2016)
• Direct bolt-on installation with included instructions
• Choice of multiple exhaust tip styles and finishes—or customize your own
• Covered by SOUL’s Lifetime Warranty for street and track use
DEWELOPMENT:
Following the success of our Valved Exhaust and its ability to fight drone, we wanted to offer a lighter, valveless version that offers an invigorating exhaust note (just like valves open mode on our Valved Exhaust) at all times with the least amount of undesirable elements like droning and rasp. This system is perfect for those who crave an aggressive sound to pair with aftermarket headers and not have it be overbearingly loud. The volume level is delightfully greater than that of PSE (Porsche Sport Exhaust) with valves open while retaining a refined exhaust note. This system is also beneficial for track cars looking for maximum flow in an exhaust but must mind decibel readings. The mufflers are incredibly effective at minimizing drone and encourage a fuller, more robust tone befitting of a Porsche.
CONSTRUCTION:
Each system is constructed from mandrel-bent T304L stainless steel tubing, including robust 2.5″ over-axle pipes, and paired with mufflers reinforced for maximum durability. SOUL mufflers are packed with premium sound-absorbing material engineered to withstand long-term use without breaking down or blowing out.
For a personalized look, select from a wide range of 321 stainless steel exhaust tips in various styles and finishes—or work with us to create a fully custom set. For those seeking performance advantages, titanium single-wall tips are also available, offering the same striking appearance while saving nearly a pound of weight compared to stainless steel.
BOLT ON AND GO:
Each exhaust is rigorously quality-checked, tested in a fixture to guarantee fitment, and then foam packed to ensure it arrives in perfect condition. Thorough installation instructions are included in the box for a straightforward install that can be performed by most DIY enthusiasts.
LIFETIME WARRANTY:
Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to resolve any questions or issues that you may have.
Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.981.ESX
The product you are viewing cross references to these numbers
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
Shop Securely
12 Month Warranty
Worldwide Delivery
The SOUL Performance Exhaust System is a high-quality aftermarket sports exhaust upgrade designed specifically for the Porsche 981 Cayman GT4, Boxster Spyder and GT4 Clubsport models manufactured between 2015 and 2016.
Fits:
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
Developed for the naturally aspirated 3.8-litre flat-six engine, this performance exhaust system replaces the original rear exhaust assembly with a lightweight, non-valved stainless steel design incorporating performance silencers and a choice of premium exhaust tips.
The Porsche 981 GT4 and Boxster Spyder are renowned for their responsive engines, distinctive high-revving exhaust character and engaging driving experience.
SOUL Performance has engineered this exhaust system to enhance those characteristics by providing a more direct exhaust flow arrangement and a stronger, more pronounced engine sound.
Unlike a conventional valved sports exhaust, the SOUL Performance Exhaust System does not incorporate electronically operated exhaust valves.
Instead, it provides a consistent sporting exhaust note whenever the engine is running.
SOUL describes the system's sound as similar in character to its Valved Exhaust System with the valves open, but with carefully developed mufflers to minimise undesirable drone and rasp.
The exhaust is designed to produce a deeper and fuller tone than the factory Porsche Sport Exhaust (PSE), with the manufacturer describing its volume as greater than PSE in the open-valve setting.
However, the system is not intended to produce an unnecessarily harsh or excessively resonant sound during normal driving.
Its performance silencers contain high-quality sound-absorbing material designed to withstand repeated heating and cooling cycles without prematurely deteriorating.
The reinforced muffler casings are engineered for durability under demanding operating conditions.
Manufactured from mandrel-bent T304L stainless steel, the system incorporates 2.5-inch outside-diameter over-axle pipes to provide a smooth exhaust gas path.
Mandrel bending helps maintain a consistent internal pipe profile through bends, reducing unnecessary restrictions compared with poorly formed exhaust tubing.
The system is also designed to be lighter than the equivalent SOUL valved exhaust arrangement by eliminating the exhaust valve mechanisms.
A range of exhaust tip styles and finishes allows owners to personalise the rear appearance of their Porsche.
Available options include single-wall and double-wall stainless steel tips, alongside lightweight titanium single-wall exhaust tips.
SOUL states that its titanium single-wall tips can save nearly one pound compared with the corresponding stainless steel tips.
Each exhaust assembly is quality-checked and tested in a dedicated fitting fixture before dispatch.
The system is designed for direct bolt-on installation on compatible vehicles, with manufacturer-supplied fitting instructions.
Backed by SOUL Performance's lifetime warranty, subject to the published conditions, this performance exhaust is suitable for owners seeking a more distinctive flat-six soundtrack, durable stainless steel construction and a simpler non-valved rear exhaust arrangement.
It is particularly attractive for Porsche enthusiasts who prefer a consistently sporting exhaust tone without relying on selectable valve operation.
What This Product Does:
The SOUL Performance Exhaust System carries exhaust gases from the engine's upstream exhaust components through the rear exhaust assembly and releases them through the exhaust outlets.
During engine operation, combustion gases leave the cylinder heads and travel through the exhaust manifolds and catalytic converter assemblies.
These gases then enter the rear exhaust system.
The SOUL exhaust uses mandrel-bent stainless steel tubing and specially developed silencers to direct the exhaust gases towards the rear outlets while controlling the resulting sound.
Its main functions include:
- Directing exhaust gases: Carries spent combustion gases through the rear exhaust and safely towards the outlets.
- Supporting efficient exhaust flow: Uses 2.5-inch over-axle tubing with smooth mandrel-formed bends.
- Enhancing exhaust sound: Produces a fuller, deeper and more aggressive naturally aspirated flat-six soundtrack.
- Reducing unwanted drone: Incorporates performance silencers designed to minimise low-frequency cabin resonance.
- Controlling exhaust rasp: Uses sound-absorbing mufflers to help maintain a refined exhaust character.
- Providing consistent sound: Delivers its sporting exhaust note without selectable exhaust valves.
- Supporting responsive engine behaviour: Provides a performance-oriented rear exhaust arrangement intended to complement the 3.8L engine.
- Maintaining upstream components: Retains compatible existing exhaust manifolds and catalytic converters.
- Improving rear appearance: Offers different exhaust tip designs and finishes.
- Providing durability: Uses corrosion-resistant stainless steel tubing and reinforced muffler casings.
- Reducing mechanical complexity: Eliminates the valve mechanisms found in a valved rear exhaust.
- Supporting performance modifications: Can complement compatible aftermarket exhaust headers and other appropriate upgrades.
Exhaust Sound Characteristics:
The SOUL Performance Exhaust System is designed to provide a stronger exhaust sound while retaining a level of refinement suitable for enthusiast use.
The manufacturer describes the system as producing a sound similar to the open-valve setting of its Valved Exhaust System.
The sound is intended to be greater in volume than the factory Porsche Sport Exhaust with its valves open.
Depending on the complete exhaust configuration, drivers may notice:
- A deeper exhaust tone at idle.
- A fuller and more robust flat-six soundtrack.
- A more pronounced exhaust note during acceleration.
- Greater sound intensity at higher engine speeds.
- Enhanced exhaust character during downshifts.
- A distinctive sporting tone during normal driving.
- Reduced unwanted drone compared with a completely unrestricted rear exhaust.
- A more refined character than a dedicated straight-through race exhaust.
Why Upgrading Matters:
The SOUL Performance Exhaust System is designed for Porsche owners who want a more pronounced engine sound and a simpler, performance-focused rear exhaust configuration.
1. Enhanced Flat-Six Exhaust Sound
The naturally aspirated 3.8L engine fitted to the Porsche 981 GT4 and Boxster Spyder produces a distinctive high-revving soundtrack.
SOUL's performance exhaust is designed to emphasise this character, creating a deeper and more aggressive exhaust tone.
2. Consistent Sporting Sound
Unlike a valved exhaust, this system does not switch between quiet and loud modes.
It provides a consistent performance exhaust character during everyday driving and more enthusiastic use.
This appeals to drivers who prefer a fixed exhaust sound.
3. Reduced Mechanical Complexity
The non-valved design eliminates moving exhaust valves and their associated mechanisms from the replacement rear exhaust.
This can simplify the exhaust arrangement compared with a system that requires valve actuation.
However, vehicle-side valve-control components may remain and should be managed according to the manufacturer's installation guidance.
4. Improved Exhaust Flow Potential
The system uses mandrel-bent 2.5-inch over-axle piping.
This design is intended to support efficient exhaust gas movement through the rear exhaust.
Specific horsepower or torque gains for this exhaust alone have not been independently confirmed.
5. Reduced Unwanted Drone
The SOUL mufflers use durable sound-absorbing materials to help control low-frequency resonance.
This makes the system an alternative to completely unrestricted rear exhaust designs.
6. Durable Stainless Steel Construction
T304L stainless steel provides corrosion resistance and suitability for repeated exposure to exhaust heat and vibration.
The reinforced muffler casings are designed for long-term durability.
7. Lighter Non-Valved Design
SOUL developed this exhaust as a lighter alternative to its valved system.
Eliminating exhaust valve hardware reduces the number of components within the rear assembly.
The exact complete-system weight saving should be verified before quoting a numerical figure.
8. Premium Exhaust Tip Options
Owners can choose from a range of single-wall and double-wall exhaust tips.
Lightweight titanium tips are available as an alternative to stainless steel.
This allows the rear appearance of the vehicle to be personalised.
9. Direct Bolt-On Installation
The exhaust is designed for direct installation on compatible vehicles.
SOUL Performance checks each system in an installation fixture and supplies fitting instructions.
10. Compatibility with Performance Headers
The manufacturer developed this exhaust to provide a sporting sound when combined with appropriate aftermarket exhaust headers.
Its mufflers help control unwanted resonance that may otherwise become more pronounced with freer-flowing upstream exhaust components.
11. Suitable for Enthusiast and Track Applications
The system provides an aggressive soundtrack while incorporating effective sound attenuation.
This may appeal to track users who require improved exhaust flow but also need to consider circuit noise limits.
Actual decibel readings must be measured for the complete vehicle configuration.
12. Manufacturer Lifetime Warranty
SOUL Performance backs its exhaust components with a lifetime warranty for street and track use, subject to the published terms and conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.GT4.ESX.
The product you are viewing cross references to these numbers
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
Shop Securely
12 Month Warranty
Worldwide Delivery
The SOUL Performance Exhaust System is a premium aftermarket sports exhaust upgrade designed specifically for the Porsche 987.2 Boxster and Cayman models manufactured between 2009 and 2012.
Fits:
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Developed for Porsche's naturally aspirated flat-six engines, this system replaces the original rear exhaust assembly with a high-quality stainless steel exhaust featuring free-flowing pipework, performance silencers and a choice of premium exhaust tips.
The factory Porsche Boxster and Cayman exhaust is designed to balance engine performance, exhaust emissions, noise restrictions and everyday comfort. However, its relatively small pipework and substantial silencer assembly can limit the volume and character of the engine's natural exhaust note.
SOUL Performance developed this system to deliver a fuller, deeper and more engaging flat-six soundtrack without the excessive cabin resonance often associated with less refined aftermarket exhausts.
The system uses mandrel-bent T304L stainless steel tubing, designed to maintain a smooth exhaust gas path through bends and reduce unnecessary flow restriction.
Its specially developed silencers incorporate sound-absorbing materials intended to minimise undesirable drone and rasp, particularly during steady-speed cruising.
Unlike the manufacturer's separate Valved Exhaust System, this version does not incorporate electronically controlled exhaust valves.
Instead, it delivers a consistently sporty exhaust tone, similar in character to the open-valve mode of SOUL's valved system.
SOUL states that the exhaust produces a greater volume than the original Porsche Sport Exhaust (PSE) with its valves open, while retaining a refined exhaust character.
The construction incorporates reinforced silencer casings and strengthened exhaust mounting brackets, designed to provide durability during repeated heating and cooling cycles, everyday driving and demanding track use.
A choice of premium exhaust tips allows owners to personalise the rear appearance of their Porsche.
Available options include different styles and finishes of 321 stainless steel exhaust tips, alongside lightweight single-wall titanium tips.
The titanium tip option offers a weight saving of nearly one pound compared with the equivalent stainless steel tips, according to SOUL Performance.
Each exhaust assembly is quality-checked and tested in a dedicated fitting fixture before dispatch to ensure consistent installation fitment.
The system is designed for direct bolt-on installation and includes new high-grade hardware for the exhaust header flange connections, together with comprehensive installation instructions.
Backed by SOUL Performance's lifetime warranty, subject to the manufacturer's published terms, this exhaust is ideal for Porsche owners seeking a more distinctive flat-six sound, durable stainless steel construction and a simple, non-valved performance exhaust arrangement.
What This Product Does:
The SOUL Performance Exhaust System carries exhaust gases from the engine's upstream exhaust components through the rear exhaust assembly and directs them towards the exhaust outlets.
During engine operation, combustion gases leave the cylinder heads and pass through the exhaust manifolds and catalytic converters.
The gases then enter the rear exhaust, where the tubing and silencers influence exhaust flow and sound.
The SOUL system uses free-flowing stainless steel pipework and specially developed mufflers to balance strong exhaust sound with controlled resonance.
Its main functions include:
- Directing exhaust gases: Carries spent combustion gases towards the rear outlets.
- Supporting exhaust flow: Uses mandrel-bent tubing to provide a smooth gas path through the rear exhaust.
- Enhancing engine sound: Produces a deeper, fuller and more sporting flat-six exhaust note.
- Reducing unwanted drone: Incorporates silencers designed to minimise low-frequency cabin resonance.
- Controlling exhaust rasp: Helps reduce harsh or undesirable high-frequency exhaust sounds.
- Providing consistent exhaust character: Delivers a fixed sporting tone without selectable exhaust valves.
- Maintaining durable exhaust construction: Uses corrosion-resistant stainless steel and reinforced silencer housings.
- Supporting secure installation: Incorporates strengthened brackets designed for extended road and track use.
- Enhancing rear-end styling: Offers a selection of exhaust tip designs and finishes.
- Complementing performance upgrades: Designed to work with compatible aftermarket exhaust headers.
- Retaining compatible upstream components: Allows the original exhaust manifolds and catalytic converters to remain fitted.
Exhaust Sound Characteristics:
SOUL Performance developed this system to provide a more aggressive exhaust note without the harshness or constant resonance of a completely unrestricted rear exhaust.
The manufacturer describes the sound as similar to its Valved Exhaust System with the valves open.
Owners may notice:
- A deeper exhaust tone at idle.
- A fuller flat-six soundtrack during acceleration.
- Increased sound intensity at higher engine speeds.
- More pronounced engine character during downshifts.
- A stronger exhaust note under heavy throttle.
- A more sporting sound than the standard Porsche rear exhaust.
- Reduced unwanted drone compared with less effectively silenced performance exhausts.
- A more refined tone than an unsilenced race exhaust.
Why Upgrading Matters:
1. Enhanced Flat-Six Engine Sound
The naturally aspirated engines fitted to Porsche 987.2 Boxster and Cayman models produce a distinctive flat-six soundtrack.
The SOUL exhaust is designed to emphasise this character, delivering a deeper and more engaging note during acceleration and high-RPM driving.
2. Consistently Sporting Exhaust Tone
Unlike a valved system, this exhaust does not require the driver to select a louder sound mode.
It provides its performance exhaust character whenever the engine is running.
3. Reduced Unwanted Drone and Rasp
SOUL's specially developed silencers aim to minimise unwanted resonance and harsh exhaust tones.
This provides a more refined alternative to unsilenced or poorly matched aftermarket systems.
4. Improved Exhaust Flow Potential
The system uses mandrel-bent stainless steel pipework designed to reduce unnecessary restrictions.
This may complement other appropriate performance modifications.
However, specific horsepower and torque gains have not been verified for this exhaust alone.
5. Durable Stainless Steel Construction
T304L stainless steel offers corrosion resistance and durability under repeated exhaust heating and cooling cycles.
The reinforced silencer casings are designed for long-term use.
6. Strengthened Exhaust Mounting Brackets
Exhaust mounts experience vibration, thermal expansion and mechanical stress during driving.
SOUL incorporates reinforced brackets intended to reduce the risk of cracking or failure during road and track use.
7. Simpler Non-Valved Design
The absence of exhaust valves reduces the number of moving components within the replacement rear exhaust.
This can appeal to owners who prefer a simpler performance exhaust configuration.
8. Premium Exhaust Tip Options
The system is available with a choice of stainless steel and titanium exhaust tips.
Different styles and finishes allow the owner to personalise the vehicle's rear appearance.
9. Direct Bolt-On Installation
The exhaust is designed for installation using the original compatible vehicle mounting arrangement.
SOUL quality-checks and fixture-tests the assembly before dispatch.
10. Compatibility with Performance Headers
The system is designed to work with suitable factory and aftermarket header arrangements.
Its silencers aim to control unwanted resonance, even when a freer-flowing upstream exhaust system is fitted.
11. Manufacturer Lifetime Warranty
SOUL Performance provides a lifetime warranty for its exhaust components, subject to the applicable warranty conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.9872.ESX.
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Shop Securely
12 Month Warranty
Worldwide Delivery
SOUL’s Race Exhaust System is designed for aggressive track use and built around maximum durability, lightness, and performance.
• Fits all Porsche 981 Cayman / Boxster vehicles (2013-2016) MANUAL TRANSMISSION, with factory or SOUL headers (differences in tolerances from other manufacturers can create issues with over axle pipe clearance)
• Designed and built in-house at our Willow Grove, PA facility
• System weighs approximately up to 18 lbs / 8.1 kg less than factory exhaust non-PSE components ( 30 lbs vs 44 lbs non-PSE / 48 PSE with mounting brackets included)
• All Soul Performance Products components are backed by a renowned Lifetime Warranty for both street and track use
DEVELOPMENT::
Our mission was to engineer a lightweight, durable, and cost-effective race exhaust system for the 981 Boxster and Cayman—one that delivers proven performance, reliability, and accessibility for serious track enthusiasts. By collaborating with respected shops, technicians, and seasoned drivers who have conducted their own independent testing over the years—including special thanks to Bryan Schute at Speed Sport Tuning and the teams at LN Engineering / BRS—we developed a track-bred system designed to meet the demands of competitive driving.
PIPING:
The system features full 2.5” over-axle piping, carefully profiled to provide sufficient clearance for axles and sway bar end links—even on aggressively lowered or heavily modified vehicles.
BESPOKE BRACKETS & MOUNTS:
Traditional welded hangers and brackets are prone to failure under the rigors of racing—a failure that can end a track day instantly. To solve this, SOUL designed a reinforced mounting solution that sheds over 5 lbs compared to the OEM setup, while remaining modular and easy to repair or replace after a track incident.
The forward piping connects to a custom SOUL transmission mounting brace—engineered for both manual and PDK models—via heavy-duty Mikalor band clamps. Additional rubber vibration dampeners support the over-axle piping, minimizing stress from flex and vibration across the system to ensure long-term durability under extreme use.
CONSTRUCTION:
Each system is handcrafted in-house by our skilled fabrication team using mandrel-bent .065″ wall, 2.5″ diameter T304L stainless steel tubing. Brackets are laser-cut, press brake-formed, and TIG welded for maximum strength, while all welds are back-purged to ensure long-term durability under the most extreme racing conditions.
SOUND:
This system is designed with track performance as the priority, not sound suppression. It is extremely loud, and even with resonators, some drone will be present. We do not recommend pairing this exhaust with aftermarket headers for street use. At wide-open throttle, however, the sound is nothing short of exhilarating—raw, aggressive, and unmistakably motorsport. For a more balanced option suited to daily driving, we suggest our Valved Exhaust System.
BOLT-ON INSTALLATION:
Every exhaust is rigorously quality-checked and fixture-tested to guarantee perfect fitment. Systems are securely foam-packed for safe delivery and include all-new high-grade hardware for the header-to-exhaust flanges. Thorough instructions are provided, making installation straightforward for most DIY enthusiasts.
LIFETIME WARRANTY:
Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to resolve any issues or answer any questions that you may have.
NOTE:
+ This product is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for off road use only
Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.981M.RER
The product you are viewing cross references to these numbers
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
Shop Securely
12 Month Warranty
Worldwide Delivery
SOUL’s Race Exhaust System is designed for aggressive track use and built around maximum durability, lightness, and performance.
• Fits all Porsche 981 Cayman / Boxster vehicles (2013-2016) PDK TRANSMISSION, with factory or SOUL headers (differences in tolerances from other manufacturers can create issues with over axle pipe clearance)
• Designed and built in-house at our Willow Grove, PA facility
• System weighs approximately up to 18 lbs / 8.1 kg less than factory exhaust non-PSE components ( 30 lbs vs 44 lbs non-PSE / 48 PSE with mounting brackets included)
• All Soul Performance Products components are backed by a renowned Lifetime Warranty for both street and track use
DEVELOPMENT::
Our mission was to engineer a lightweight, durable, and cost-effective race exhaust system for the 981 Boxster and Cayman—one that delivers proven performance, reliability, and accessibility for serious track enthusiasts. By collaborating with respected shops, technicians, and seasoned drivers who have conducted their own independent testing over the years—including special thanks to Bryan Schute at Speed Sport Tuning and the teams at LN Engineering / BRS—we developed a track-bred system designed to meet the demands of competitive driving.
PIPING:
The system features full 2.5” over-axle piping, carefully profiled to provide sufficient clearance for axles and sway bar end links—even on aggressively lowered or heavily modified vehicles.
BESPOKE BRACKETS & MOUNTS:
Traditional welded hangers and brackets are prone to failure under the rigors of racing—a failure that can end a track day instantly. To solve this, SOUL designed a reinforced mounting solution that sheds over 5 lbs compared to the OEM setup, while remaining modular and easy to repair or replace after a track incident.
The forward piping connects to a custom SOUL transmission mounting brace—engineered for both manual and PDK models—via heavy-duty Mikalor band clamps. Additional rubber vibration dampeners support the over-axle piping, minimizing stress from flex and vibration across the system to ensure long-term durability under extreme use.
CONSTRUCTION:
Each system is handcrafted in-house by our skilled fabrication team using mandrel-bent .065″ wall, 2.5″ diameter T304L stainless steel tubing. Brackets are laser-cut, press brake-formed, and TIG welded for maximum strength, while all welds are back-purged to ensure long-term durability under the most extreme racing conditions.
SOUND:
This system is designed with track performance as the priority, not sound suppression. It is extremely loud, and even with resonators, some drone will be present. We do not recommend pairing this exhaust with aftermarket headers for street use. At wide-open throttle, however, the sound is nothing short of exhilarating—raw, aggressive, and unmistakably motorsport. For a more balanced option suited to daily driving, we suggest our Valved Exhaust System.
BOLT-ON INSTALLATION:
Every exhaust is rigorously quality-checked and fixture-tested to guarantee perfect fitment. Systems are securely foam-packed for safe delivery and include all-new high-grade hardware for the header-to-exhaust flanges. Thorough instructions are provided, making installation straightforward for most DIY enthusiasts.
LIFETIME WARRANTY:
Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to resolve any issues or answer any questions that you may have.
NOTE:
+ This product is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for off road use only
Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.981P.RER
The product you are viewing cross references to these numbers
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
Shop Securely
12 Month Warranty
Worldwide Delivery
The SOUL Performance Race Exhaust System is a premium aftermarket motorsport exhaust developed specifically for the Porsche 981 Cayman GT4 and Boxster Spyder models manufactured between 2015 and 2016.
Fits:
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
Designed for the naturally aspirated 3.8-litre flat-six engine, this exhaust replaces the original rear exhaust assembly with a lightweight, high-flow stainless steel system engineered for demanding circuit driving and motorsport applications.
Unlike conventional sports exhaust systems, which balance performance, refinement and everyday comfort, the SOUL Race Exhaust is developed primarily to deliver maximum durability, reduced weight, efficient exhaust flow and a highly aggressive engine soundtrack.
The system uses 2.5-inch diameter T304L stainless steel tubing, manufactured with precision mandrel bends to maintain a consistent flow path through the exhaust system.
The tubing has a 0.065-inch wall thickness, providing a balance of strength, durability and lightweight construction.
Each system is manufactured in-house at SOUL Performance's Willow Grove, Pennsylvania facility, where the components are carefully fabricated and inspected.
The stainless steel brackets are laser-cut, press-brake formed and TIG-welded for strength, while the exhaust welds are back-purged to support long-term durability under demanding conditions.
One of the system's most distinctive features is its specially developed mounting arrangement.
Instead of relying exclusively on conventional exhaust hangers welded directly to the pipework, SOUL uses a bespoke transmission mounting brace, heavy-duty Mikalor band clamps and additional rubber vibration dampeners.
This construction is designed to reduce stress caused by engine movement, exhaust vibration and repeated thermal expansion.
SOUL states that its mounting arrangement saves over 5 lb (approximately 2.3 kg) compared with the original factory exhaust mounts.
The over-axle pipe geometry is also designed to provide sufficient clearance around the rear axles and anti-roll bar drop links, including on vehicles with lowered or modified suspension.
This is particularly relevant to track-prepared Porsche GT4 models, where aftermarket suspension setups may reduce available exhaust clearance.
The system is compatible with the original factory headers and SOUL Performance headers.
Compatibility with exhaust headers produced by other manufacturers must be checked carefully because dimensional differences may affect over-axle pipe clearance.
The SOUL Race Exhaust produces an exceptionally loud and aggressive exhaust note, emphasising the distinctive character of the Porsche naturally aspirated flat-six engine.
Its reduced sound attenuation produces a much more direct exhaust experience than the manufacturer's Performance Exhaust or Valved Exhaust systems.
SOUL explicitly states that exhaust drone will be present, even when resonators are used.
For this reason, the Race Exhaust is best suited to dedicated circuit cars, competition vehicles and other legally permitted off-road applications rather than everyday road use.
The exhaust is designed for direct bolt-on installation on compatible vehicles and includes new high-grade hardware for the header-to-exhaust flange connections.
Each assembly undergoes quality checks and fixture testing before dispatch.
Backed by SOUL Performance's lifetime warranty, subject to the manufacturer's terms, the Race Exhaust System provides a purpose-built solution for Porsche enthusiasts seeking reduced mounting weight, motorsport durability and an exceptionally aggressive flat-six soundtrack.
What This Product Does:
The SOUL Race Exhaust System directs spent combustion gases away from the engine's upstream exhaust components and through the rear exhaust outlets.
After combustion, exhaust gases leave the engine through the exhaust manifolds and associated catalytic converter assemblies, where fitted.
The gases then pass through the over-axle exhaust pipes and towards the rear outlets.
The SOUL Race Exhaust provides a performance-focused alternative to the original rear silencer arrangement.
Its main functions include:
- Directing exhaust gases: Carries combustion gases from the upstream exhaust system towards the rear outlets.
- Supporting efficient exhaust flow: Uses mandrel-bent stainless steel tubing with a 2.5-inch diameter.
- Reducing unnecessary restriction: Employs a race-focused flow path rather than a heavily silenced factory-style rear exhaust.
- Enhancing engine sound: Produces a substantially louder and more aggressive naturally aspirated flat-six soundtrack.
- Reducing mounting weight: Uses a bespoke mounting system that saves over 5 lb compared with the factory mounts.
- Supporting motorsport durability: Incorporates reinforced mounting components developed for demanding circuit operation.
- Reducing mounting stress: Uses heavy-duty clamps and rubber vibration dampeners to manage vibration and movement.
- Maintaining suspension clearance: Features over-axle pipework shaped to clear the axles and anti-roll bar drop links.
- Accommodating modified suspension: Provides pipe profiles developed with lowered and track-prepared vehicles in mind.
- Supporting repairability: Uses mounting components designed to be serviced or replaced after motorsport incidents.
- Providing corrosion resistance: Uses T304L stainless steel for repeated exposure to heat and environmental conditions.
- Maintaining compatible header connections: Connects to the original Porsche or suitable SOUL Performance exhaust headers.
Exhaust Sound Characteristics:
The SOUL Race Exhaust is designed for drivers who want an exceptionally loud and aggressive exhaust note.
It provides a much less attenuated soundtrack than the original Porsche rear exhaust.
Depending on the engine speed, upstream exhaust configuration and driving conditions, drivers may notice:
- A noticeably louder exhaust tone at idle.
- A very aggressive exhaust note during acceleration.
- Increased flat-six sound intensity at higher engine speeds.
- Stronger exhaust presence during gear changes and downshifts.
- Pronounced exhaust character during high-load circuit driving.
- Increased cabin resonance.
- Noticeable low-frequency exhaust drone.
- A more direct motorsport-style exhaust soundtrack.
Why Upgrading Matters:
1. Motorsport-Focused Construction
The Race Exhaust is designed specifically for demanding track applications.
Its reinforced components and specialised mounting arrangement are intended to withstand the stresses associated with aggressive circuit driving.
2. Reduced Exhaust Restriction
The system uses mandrel-bent 2.5-inch exhaust tubing and a freer-flowing rear exhaust arrangement.
This supports efficient movement of exhaust gases through the system.
However, specific horsepower or torque gains for this exhaust alone have not been independently confirmed.
3. Reduced Mounting Weight
SOUL states that its bespoke mounting arrangement saves more than 5 lb compared with the original factory mounts.
This contributes to the weight-saving design of the system.
4. Improved Exhaust Support
Heavy-duty Mikalor clamps and additional rubber vibration dampeners are designed to reduce excessive stress on the pipework.
This can be particularly valuable in vehicles subjected to repeated high-load driving and vibration.
5. Improved Clearance for Lowered Vehicles
The over-axle pipe geometry is developed to provide clearance around the rear axles and anti-roll bar drop links.
This makes the system relevant to GT4 models fitted with modified or lowered suspension.
Final clearance must still be checked during installation.
6. Highly Aggressive Flat-Six Sound
The system is designed to deliver a strong, intense and unmistakably motorsport-inspired exhaust note.
It is suitable for drivers who prioritise exhaust character over quiet cruising.
7. Durable Stainless Steel Construction
The T304L stainless steel tubing offers corrosion resistance and durability under repeated thermal cycling.
The system also incorporates high-quality TIG welding and back-purged weld construction.
8. Improved Repairability
The specialised mounting components are designed to be more straightforward to repair or replace after a track incident than conventional fixed hanger arrangements.
9. Compatibility with Factory or SOUL Headers
The system is designed to connect to the factory headers or SOUL Performance headers.
Compatibility with other aftermarket header systems should not be assumed.
10. Direct Bolt-On Installation
SOUL Performance fixture-tests the exhaust assemblies for fitment and includes installation instructions.
New high-grade hardware is supplied for the header-to-exhaust flanges.
11. Manufacturer Lifetime Warranty
SOUL Performance provides a lifetime warranty for its exhaust components, subject to the applicable conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.GT4M.RER.
The product you are viewing cross references to these numbers
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman GT4 3.8L 2015-16
Shop Securely
12 Month Warranty
Worldwide Delivery
-
Exhaust system - 9721, 9720 - 987C.1 Cayman 2.7L / 3.4L 2006-08 202-000
-
Exhaust system 987C.2 Cayman 2009-12 202-000
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Exhaust system / Sport version (PR:XLF) 987C.2 Cayman 2009-12 202-005
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Exhaust system 981C Cayman / Cayman S 2014-16 202-000
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Sports exhaust system (PR:XLF) 981C Cayman / Cayman S 2014-16 202-005
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Exhaust system - Sport (PR:XLF) - 981C Cayman GT4 2016 202-000
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Sport Silencers / Mufflers
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Switchable Silencers / Mufflers
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All Silencers / Mufflers
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Catalyst / Bypass
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Manifold / Headers
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Exhaust Tail Pipes
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Heat Exchangers
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Exhaust Package
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Exhaust Gaskets
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Exhaust Nuts / Bolts / Studs
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Brackets / Clamps / Straps
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Exhaust Fitting Kits
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Sport Exhaust Vacuum Parts
-
Lambda Sensors / Probes
-
Lambda Sensor Extensions
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Fabspeed Exhaust
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Saturday: Closed
Sunday: Closed