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Your Vehicle // Porsche // Boxster 986/987/981 (1997-2016) // Any
All Silencers / Mufflers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 Boxster 981 Spyder 3.8L 2016
The SOUL 986 Competition Exhaust Package upgrades the restrictive factory system with a precision-engineered header and exhaust setup, boosting power while delivering an aggressive yet refined Porsche sound.
• Compatible with all Porsche 986 Boxster models (2000–2004)
• Backed by SOUL Performance Products’ Lifetime Warranty for both street and track use
DEVELOPMENT:
The Porsche 986 Boxster is a fantastic sports car with huge potential, but its factory exhaust is overly restrictive. Stock headers use oversized catalytic converters, thin flanges, and crushed primary tubing that hold back performance, while the OEM exhaust adds a second set of converters that further reduce power. The SOUL 986 Competition Exhaust Package eliminates these weak points with a complete header and cat-back system engineered to work together. Designed to maximize performance and sound, the system delivers excitement without unwanted drone—SOUL mufflers keep things reserved at partial throttle, even when paired with catless headers. No valves are needed, making it the perfect choice for drivers who want raw performance and a bold exhaust note on demand, yet comfortable refinement around town.
CONSTRUCTION:
Our headers are precision-engineered and crafted from durable T304L stainless steel, featuring port-matched flanges, smooth-radius primary tubing, and optimized collectors for maximum exhaust flow and power gains. Each system is mandrel-bent from T304L stainless steel and paired with mufflers reinforced for long-term durability. Custom brackets and clamps are supplied for a secure installation on your Boxster. To finish the look, select from a range of 321 stainless steel exhaust tips in various styles and finishes—or work with us to create a fully customized set.
BOLT ON AND GO:
Every exhaust component undergoes strict quality checks and is fixture-tested to guarantee perfect fitment. Each system is foam-packed for safe delivery and comes with new high-grade hardware for the header-to-exhaust flanges. Comprehensive installation instructions are provided in the box—see the notes at the bottom of the page for details.
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 package is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for closed course competition use only
+ Trimming of the inner fender liner and exhaust heat shield is required on all vehicles and headlight auto leveling sensor may need to be disabled / removed and rerouting of brake hard line may be necessary to protect from heat – as such we recommend professional installation. Contact us if you need a dealer / installer recommendation
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.9862.COPKG
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
Transform the sound and character of your Porsche 986 Boxster (1997–2004) with SOUL’s Valved Muffler Bypass Conversion. These direct bolt-on pipes replace the factory exhaust section, delivering a refined OEM note with valves closed and an aggressive, CUP car–inspired roar with valves open. By default, the valves remain closed at startup for a smooth, neighbor-friendly warm-up, and with a press of a button you unleash the unmistakable flat-six tone.
• Fits all Porsche 986 Boxster models (1997 – 2004)
• Valves closed on startup for a quiet, drone-free OEM experience
• Remote valve control included, with compatibility for factory HomeLink buttons (if equipped)
• Designed and hand-built in-house at SOUL’s Willow Grove, PA facility
• Backed by SOUL Performance Products’ Lifetime Warranty for both street and track use
DEVELOPMENT:
SOUL engineered this system to offer the flexibility of two exhaust personalities in one. With valves closed, it’s quiet and refined—perfect for everyday driving or early morning startups. Open the valves, and the mufflers are bypassed to create a raw, motorsport-inspired soundtrack, all while minimizing drone.
SOUND:
Valves closed, your Boxster retains its stock tone. Open them, and exhaust gases flow directly through the bypass tubes, producing an aggressive bark and thrilling flat-six roar that transforms the driving experience.
CONSTRUCTION:
Each system is fabricated in-house using brand new OEM Porsche muffler piping and high-quality, application-specific valves. Exhausts are built in precision aluminium fixtures to guarantee fitment, rigorously tested, and foam-packed for safe delivery.
BOLT ON AND GO:
The design allows for straightforward installation with no cutting or modifications. Simply bolt on and enjoy the ability to switch between OEM refinement and track-day aggression with the included remote valve controller.
LIFETIME WARRANTY:
The design allows for straightforward installation with no cutting or modifications. Simply bolt on and enjoy the ability to switch between OEM refinement and track-day aggression with the included remote valve controller.
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.986.VMBC
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
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
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
The SOUL Performance Exhaust System is a premium aftermarket stainless steel sports exhaust developed specifically for Porsche 987.1 Boxster and Cayman models manufactured between 2005 and 2008.
Fits:
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Designed for Porsche's naturally aspirated flat-six engines, this system replaces the original rear exhaust assembly with a lighter, freer-flowing configuration that provides a more pronounced exhaust note without sacrificing everyday driving refinement.
The original Porsche 987.1 exhaust incorporates secondary catalytic converters, restrictive pipework and relatively heavy silencers. Although these components help control emissions and noise, they also influence exhaust flow, sound characteristics and overall vehicle weight.
SOUL Performance developed its exhaust system to enhance the driving experience by allowing more of the flat-six engine's distinctive sound to be heard during acceleration while maintaining a controlled exhaust tone during normal driving.
The system incorporates free-flowing, mandrel-bent T304L stainless steel tubing and specially designed performance silencers with reinforced outer casings.
These silencers are engineered to produce a deeper and more engaging exhaust sound under throttle while greatly reducing unwanted low-frequency cabin resonance.
Unlike a conventional straight-through race exhaust, the SOUL Performance Exhaust System is designed to remain refined during cruising.
The manufacturer specifically states that its silencer arrangement minimises drone, including when paired with compatible aftermarket exhaust headers.
This is a non-valved exhaust system, meaning that it does not require vacuum-operated exhaust valves, electronic controllers or additional valve-control equipment.
Instead, the sound characteristics change naturally according to engine speed and load.
During gentle driving, the exhaust produces a restrained sporting tone. Under harder acceleration, the engine delivers a stronger and more aggressive flat-six soundtrack.
SOUL Performance manufactures the system using corrosion-resistant T304L stainless steel tubing and reinforced performance silencers.
The mounting brackets are strengthened to help prevent fatigue cracking and other damage caused by vibration and repeated thermal cycling.
According to SOUL Performance, the replacement exhaust weighs approximately 21.7 lb (9.8 kg) compared with approximately 36.6 lb (16.6 kg) for the factory components.
This represents a manufacturer-reported saving of approximately 15 lb (6.8 kg).
Each exhaust system is quality-checked and tested in a fitting fixture to verify installation accuracy.
The kit is designed for direct bolt-on installation and includes new high-grade hardware for the header-to-exhaust flange connections, along with installation instructions.
Backed by SOUL Performance's lifetime warranty, subject to the manufacturer's terms, this exhaust is an attractive upgrade for Porsche owners seeking enhanced engine sound, improved exhaust flow potential, reduced weight and durable stainless steel construction.
What This Product Does:
The SOUL Performance Exhaust System directs combustion gases from the engine's upstream exhaust components through the rear exhaust assembly and out of the vehicle.
During engine operation, exhaust gases leave the cylinder heads and pass through the exhaust manifolds and primary catalytic converters, where fitted.
The gases then enter the rear exhaust system.
The SOUL Performance Exhaust replaces the factory rear arrangement with mandrel-bent stainless steel tubing and performance silencers.
Its primary functions include:
- Directing exhaust gases: Carries combustion gases safely towards the rear exhaust outlets.
- Supporting efficient exhaust flow: Uses smooth-radius, mandrel-bent stainless steel pipework.
- Reducing exhaust restriction: Replaces the factory rear assembly, including its secondary catalytic converters.
- Enhancing engine sound: Produces a fuller and more aggressive flat-six exhaust note during acceleration.
- Minimising cabin drone: Uses specially designed silencers to reduce unwanted low-frequency resonance.
- Maintaining cruising refinement: Provides a more restrained exhaust note at steady engine loads.
- Reducing exhaust weight: Offers an approximately 15 lb manufacturer-reported weight saving.
- Supporting durability: Uses corrosion-resistant stainless steel and strengthened mounting components.
- Maintaining exhaust alignment: Provides reinforced brackets designed to secure the exhaust during normal and demanding driving.
- Improving rear-end styling: Allows owners to choose different exhaust tip materials and finishes.
- Supporting performance modifications: Can be combined with suitable aftermarket exhaust headers.
- Simplifying operation: Provides sporting exhaust sound without electronic or vacuum-operated valves.

Exhaust Sound Characteristics:
Normal Driving – Refined Sporting Tone
During gentle acceleration and steady cruising, the system is designed to maintain a controlled exhaust sound.
Benefits include:
- A deeper flat-six exhaust tone.
- Reduced unwanted cabin resonance.
- More refined motorway driving than a typical race exhaust.
- Consistent exhaust operation without valve controls.
- A sporting sound without continuously excessive volume.
Acceleration – Aggressive Flat-Six Sound
Under heavier throttle, the exhaust produces a more pronounced soundtrack.
Drivers can expect:
- A stronger exhaust note during acceleration.
- More noticeable flat-six engine character.
- Greater sound intensity at higher engine speeds.
- A more engaging sound during gear changes and downshifts.
- Increased exhaust character compared with the original rear silencers.
The final sound will depend on the original or aftermarket
exhaust headers fitted to the vehicle.
Why Upgrading Matters:
1. Enhanced Flat-Six Engine Sound
The SOUL Performance Exhaust produces a deeper, fuller and more aggressive sound than the original rear exhaust assembly.
It is designed to highlight the character of the Porsche flat-six engine without the excessive noise associated with some motorsport exhausts.
2. Reduced Unwanted Drone
The performance silencers are specifically developed to minimise unwanted cabin resonance.
This makes the system appealing to owners who want an engaging exhaust note without consistently high noise levels.
3. Improved Exhaust Flow Potential
The system uses smooth, mandrel-bent stainless steel tubing and replaces the factory rear exhaust configuration.
This is intended to reduce unnecessary exhaust restriction.
4. Lightweight Construction
SOUL Performance reports the following weight comparison:
Factory rear exhaust: approximately 36.6 lb (16.6 kg). SOUL Performance Exhaust: approximately 21.7 lb (9.8 kg). Weight saving: approximately 15 lb (6.8 kg).
Reducing unnecessary vehicle weight can be beneficial in performance-focused applications.
5. Stainless Steel Durability
T304L stainless steel provides corrosion resistance and durability under high-temperature operating conditions.
6. Reinforced Exhaust Mounting
The strengthened brackets and fortified silencer casings are designed to resist fatigue damage caused by vibration and repeated thermal cycling.
7. No Exhaust Valve Maintenance
Because this system is non-valved, there are no exhaust valve actuators, vacuum-control hoses or electronic switching mechanisms associated with the replacement exhaust itself.
8. More Engaging Driving Experience
The stronger exhaust sound makes the engine's response more noticeable during acceleration and gear changes.
9. Compatibility with Aftermarket Headers
SOUL designed the exhaust to work with compatible aftermarket exhaust headers.
The manufacturer specifically highlights the system's controlled sound characteristics when used with its performance header configurations.
10. Premium Exhaust Tip Options
Owners can choose from different stainless steel exhaust tip finishes or select lightweight titanium tips.
11. Direct Bolt-On Installation
The exhaust is designed to fit the compatible original mounting arrangement.
SOUL fixture-tests each system and supplies fitting instructions and relevant hardware.
12. Manufacturer Lifetime Warranty
SOUL Performance provides a lifetime warranty for its exhaust components, subject to the published terms and conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.9871.ESX.
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
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
The SOUL Performance Race Exhaust System is a high-performance aftermarket rear exhaust 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 naturally aspirated 2.9-litre and 3.4-litre flat-six engines, this motorsport-focused system replaces the original rear exhaust with a lightweight, freer-flowing stainless steel arrangement.
Unlike conventional sports exhaust systems that balance sound, comfort and performance, the SOUL Race Exhaust has been developed primarily for track use, durability, weight reduction and efficient exhaust gas flow.
The system features mandrel-bent T304L stainless steel tubing with a 0.065-inch wall thickness, providing a combination of strength, corrosion resistance and reduced weight.
SOUL specifies 2.5-inch tubing for the main exhaust construction and describes the over-axle pipe profiles as 2.25 inches in diameter.
The over-axle sections are shaped to provide clearance around the rear axles and anti-roll bar drop links, including on vehicles fitted with lowered or modified suspension.
A key feature is the exhaust's bespoke mounting arrangement.
SOUL developed a transmission mounting brace and heavy-duty Mikalor band clamp system to reduce the stress associated with conventional exhaust hangers welded directly to the pipework.
Additional rubber vibration dampeners provide support to the over-axle pipes, helping manage movement and vibration during demanding driving conditions.
The mounting arrangement is also designed to be easier to repair or replace following an incident during motorsport use.
The system is manufactured in-house at SOUL Performance's Willow Grove, Pennsylvania facility.
Its stainless steel brackets are laser-cut, press-brake formed and TIG-welded, while the exhaust welds are back-purged to support durability.
SOUL Performance reports that its Race Exhaust weighs approximately 27 lb (12.2 kg), compared with approximately 46 lb (20.9 kg) for the original exhaust components.
These figures include the mounting brackets.
The resulting reduction is approximately 19 lb (8.6 kg).
The manufacturer also states that its bespoke mounting solution alone saves more than 5 lb compared with the original factory mounting arrangement.
The Race Exhaust is designed to produce an exceptionally loud and aggressive flat-six soundtrack.
Its reduced sound attenuation allows more of the engine's natural exhaust character to be heard, especially during hard acceleration and high-RPM operation.
However, this comes with a significant reduction in everyday driving refinement.
SOUL explicitly warns that exhaust drone will be present, even when resonators are fitted.
The manufacturer also advises against combining this exhaust with aftermarket headers for normal street driving because of the resulting sound characteristics.
Owners seeking a quieter or more refined exhaust should consider SOUL's separate Valved Exhaust System.
The Race Exhaust is designed for direct bolt-on installation on compatible vehicles and includes high-grade header-to-exhaust flange hardware and installation instructions.
Backed by SOUL Performance's lifetime warranty, subject to the manufacturer's conditions, this system is an upgrade for Porsche owners seeking a lighter, more durable and more aggressive exhaust arrangement for track-focused applications.
What This Product Does:
The SOUL Race Exhaust System carries spent combustion gases from the upstream exhaust components through the rear exhaust arrangement and directs them towards the exhaust outlets.
When the engine operates, exhaust gases leave the cylinder heads and travel through the exhaust manifolds and catalytic converters, where fitted.
The gases then pass into the rear exhaust system.
The SOUL Race Exhaust uses a freer-flowing pipe arrangement with substantially less emphasis on sound attenuation than the original Porsche exhaust.
Its primary functions include:
- Directing exhaust gases: Carries combustion gases towards the rear outlets.
- Supporting efficient exhaust flow: Uses mandrel-bent stainless steel pipework.
- Reducing rear exhaust restriction: Provides a more direct exhaust route than the heavily silenced original rear assembly.
- Enhancing engine sound: Produces an aggressive motorsport-style flat-six soundtrack.
- Reducing vehicle weight: Saves approximately 19 lb compared with the manufacturer's stated original exhaust and bracket weight.
- Supporting track durability: Uses reinforced mounting components and high-quality fabrication.
- Reducing mounting stress: Employs a bespoke transmission brace, heavy-duty clamps and vibration dampeners.
- Accommodating modified suspension: Uses over-axle pipe profiles designed to maintain clearance around nearby suspension components.
- Supporting repairability: Incorporates mounting components intended to be serviceable following damage.
- Maintaining exhaust alignment: Provides a secure mounting arrangement for demanding driving conditions.
- Supporting performance modifications: Connects to compatible factory or SOUL Performance exhaust headers.
- Providing corrosion resistance: Uses T304L stainless steel construction.

Exhaust Sound Characteristics:
The SOUL Race Exhaust is designed for owners who prioritise motorsport sound over everyday refinement.
It creates an extremely aggressive exhaust note, particularly during high-load driving.
Depending on engine specification, installed headers and operating conditions, drivers may notice:
- A considerably louder exhaust tone at idle.
- A strong, aggressive flat-six sound during acceleration.
- Increased exhaust volume at higher engine speeds.
- More pronounced engine sound during downshifts.
- Significant cabin resonance.
- Noticeable low-frequency exhaust drone.
- A more direct motorsport-style exhaust character.
Why Upgrading Matters:
1. Significant Weight Reduction
SOUL reports a saving of approximately 19 lb (8.6 kg) compared with the factory exhaust components, including mounting brackets.
Reducing unnecessary vehicle weight can be beneficial in performance-focused applications.
2. Motorsport-Focused Durability
The reinforced mounting arrangement and high-quality fabrication are designed to withstand repeated circuit use.
This makes the system relevant to Porsche owners preparing their vehicles for demanding track applications.
3. Improved Exhaust Flow Potential
The Race Exhaust uses mandrel-bent stainless steel tubing and a more direct gas path.
This is intended to reduce unnecessary restriction in the rear exhaust.
4. Aggressive Flat-Six Sound
The system provides a substantially louder exhaust note than the original Porsche rear exhaust.
It emphasises the naturally aspirated engine's sound during acceleration and high-RPM operation.
5. Reduced Mounting Stress
The bespoke transmission mounting brace, Mikalor clamps and rubber dampeners help manage vibration and mechanical movement.
6. Improved Serviceability
SOUL designed the mounting components to be easier to repair or replace in the event of track damage.
7. Suspension Clearance
The over-axle pipe profiles are designed to provide clearance around the rear axles and anti-roll bar drop links.
This can be beneficial on lowered or modified vehicles, although actual clearance must always be checked.
8. Stainless Steel Construction
T304L stainless steel provides corrosion resistance and durability under repeated high-temperature operation.
9. Precision Fabrication
The exhaust incorporates TIG-welded brackets and back-purged weld construction.
These manufacturing processes are intended to support consistent quality and durability.
10. Direct Bolt-On Installation
The system is designed to fit the compatible original exhaust connection points.
SOUL fixture-tests each exhaust before dispatch and includes fitting instructions.
11. Manufacturer Lifetime Warranty
SOUL Performance provides a lifetime warranty for its exhaust components, subject to the applicable terms.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.9872M.RER.
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
The SOUL Performance Race Exhaust System is a high-performance aftermarket rear exhaust 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 naturally aspirated 2.9-litre and 3.4-litre flat-six engines, this motorsport-focused system replaces the original rear exhaust with a lightweight, freer-flowing stainless steel arrangement.
Unlike conventional sports exhaust systems that balance sound, comfort and performance, the SOUL Race Exhaust has been developed primarily for track use, durability, weight reduction and efficient exhaust gas flow.
The system features mandrel-bent T304L stainless steel tubing with a 0.065-inch wall thickness, providing a combination of strength, corrosion resistance and reduced weight.
SOUL specifies 2.5-inch tubing for the main exhaust construction and describes the over-axle pipe profiles as 2.25 inches in diameter.
The over-axle sections are shaped to provide clearance around the rear axles and anti-roll bar drop links, including on vehicles fitted with lowered or modified suspension.
A key feature is the exhaust's bespoke mounting arrangement.
SOUL developed a transmission mounting brace and heavy-duty Mikalor band clamp system to reduce the stress associated with conventional exhaust hangers welded directly to the pipework.
Additional rubber vibration dampeners provide support to the over-axle pipes, helping manage movement and vibration during demanding driving conditions.
The mounting arrangement is also designed to be easier to repair or replace following an incident during motorsport use.
The system is manufactured in-house at SOUL Performance's Willow Grove, Pennsylvania facility.
Its stainless steel brackets are laser-cut, press-brake formed and TIG-welded, while the exhaust welds are back-purged to support durability.
SOUL Performance reports that its Race Exhaust weighs approximately 27 lb (12.2 kg), compared with approximately 46 lb (20.9 kg) for the original exhaust components.
These figures include the mounting brackets.
The resulting reduction is approximately 19 lb (8.6 kg).
The manufacturer also states that its bespoke mounting solution alone saves more than 5 lb compared with the original factory mounting arrangement.
The Race Exhaust is designed to produce an exceptionally loud and aggressive flat-six soundtrack.
Its reduced sound attenuation allows more of the engine's natural exhaust character to be heard, especially during hard acceleration and high-RPM operation.
However, this comes with a significant reduction in everyday driving refinement.
SOUL explicitly warns that exhaust drone will be present, even when resonators are fitted.
The manufacturer also advises against combining this exhaust with aftermarket headers for normal street driving because of the resulting sound characteristics.
Owners seeking a quieter or more refined exhaust should consider SOUL's separate Valved Exhaust System.
The Race Exhaust is designed for direct bolt-on installation on compatible vehicles and includes high-grade header-to-exhaust flange hardware and installation instructions.
Backed by SOUL Performance's lifetime warranty, subject to the manufacturer's conditions, this system is an upgrade for Porsche owners seeking a lighter, more durable and more aggressive exhaust arrangement for track-focused applications.
What This Product Does:
The SOUL Race Exhaust System carries spent combustion gases from the upstream exhaust components through the rear exhaust arrangement and directs them towards the exhaust outlets.
When the engine operates, exhaust gases leave the cylinder heads and travel through the exhaust manifolds and catalytic converters, where fitted.
The gases then pass into the rear exhaust system.
The SOUL Race Exhaust uses a freer-flowing pipe arrangement with substantially less emphasis on sound attenuation than the original Porsche exhaust.
Its primary functions include:
- Directing exhaust gases: Carries combustion gases towards the rear outlets.
- Supporting efficient exhaust flow: Uses mandrel-bent stainless steel pipework.
- Reducing rear exhaust restriction: Provides a more direct exhaust route than the heavily silenced original rear assembly.
- Enhancing engine sound: Produces an aggressive motorsport-style flat-six soundtrack.
- Reducing vehicle weight: Saves approximately 19 lb compared with the manufacturer's stated original exhaust and bracket weight.
- Supporting track durability: Uses reinforced mounting components and high-quality fabrication.
- Reducing mounting stress: Employs a bespoke transmission brace, heavy-duty clamps and vibration dampeners.
- Accommodating modified suspension: Uses over-axle pipe profiles designed to maintain clearance around nearby suspension components.
- Supporting repairability: Incorporates mounting components intended to be serviceable following damage.
- Maintaining exhaust alignment: Provides a secure mounting arrangement for demanding driving conditions.
- Supporting performance modifications: Connects to compatible factory or SOUL Performance exhaust headers.
- Providing corrosion resistance: Uses T304L stainless steel construction.

Exhaust Sound Characteristics:
The SOUL Race Exhaust is designed for owners who prioritise motorsport sound over everyday refinement.
It creates an extremely aggressive exhaust note, particularly during high-load driving.
Depending on engine specification, installed headers and operating conditions, drivers may notice:
- A considerably louder exhaust tone at idle.
- A strong, aggressive flat-six sound during acceleration.
- Increased exhaust volume at higher engine speeds.
- More pronounced engine sound during downshifts.
- Significant cabin resonance.
- Noticeable low-frequency exhaust drone.
- A more direct motorsport-style exhaust character.
Why Upgrading Matters:
1. Significant Weight Reduction
SOUL reports a saving of approximately 19 lb (8.6 kg) compared with the factory exhaust components, including mounting brackets.
Reducing unnecessary vehicle weight can be beneficial in performance-focused applications.
2. Motorsport-Focused Durability
The reinforced mounting arrangement and high-quality fabrication are designed to withstand repeated circuit use.
This makes the system relevant to Porsche owners preparing their vehicles for demanding track applications.
3. Improved Exhaust Flow Potential
The Race Exhaust uses mandrel-bent stainless steel tubing and a more direct gas path.
This is intended to reduce unnecessary restriction in the rear exhaust.
4. Aggressive Flat-Six Sound
The system provides a substantially louder exhaust note than the original Porsche rear exhaust.
It emphasises the naturally aspirated engine's sound during acceleration and high-RPM operation.
5. Reduced Mounting Stress
The bespoke transmission mounting brace, Mikalor clamps and rubber dampeners help manage vibration and mechanical movement.
6. Improved Serviceability
SOUL designed the mounting components to be easier to repair or replace in the event of track damage.
7. Suspension Clearance
The over-axle pipe profiles are designed to provide clearance around the rear axles and anti-roll bar drop links.
This can be beneficial on lowered or modified vehicles, although actual clearance must always be checked.
8. Stainless Steel Construction
T304L stainless steel provides corrosion resistance and durability under repeated high-temperature operation.
9. Precision Fabrication
The exhaust incorporates TIG-welded brackets and back-purged weld construction.
These manufacturing processes are intended to support consistent quality and durability.
10. Direct Bolt-On Installation
The system is designed to fit the compatible original exhaust connection points.
SOUL fixture-tests each exhaust before dispatch and includes fitting instructions.
11. Manufacturer Lifetime Warranty
SOUL Performance provides a lifetime warranty for its exhaust components, subject to the applicable terms.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.9872P.RER.
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
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
Unlock the full potential of your 986 Spec Boxster with a race-bred exhaust engineered for maximum durability, reduced weight, and proven performance. Designed specifically for competition use, this system delivers the strength and sound demanded on track while shedding significant weight over factory components.
• Fits Porsche 986 Boxster Base vehicles with 5-speed manual transmission (1997-2004)
• Weight savings: 24.8 lbs / 11.2 kg lighter than stock (14.7 lbs vs. 39.5 lbs)
• Precision-built in-house at SOUL’s Willow Grove, PA facility
• Backed by SOUL Performance Products’ Lifetime Warranty for both street and track use
DEVELOPMENT:
Several Spec racing teams and shops including our development partner, Brandywine Motorwerks, have been seeking an exhaust solution that is durable enough for racing use as existing systems on the market and DIY solutions have been known to fail. We set out to build the most durable system possible while being cost effective and minding weight. A lack of resonance damping in a 986 exhaust system for competition use can cause metal fatigue in the factory headers, resulting in cracking. We crafted bespoke, adjustable brackets to mount the exhaust to the transmission to match movement of the drivetrain to the exhaust opposed to hard mounting to the body. Silicone dampers are also included as part of the brackets to help absorb vibrations. Clamps are not welded to the piping to prevent fatigue and provide easy / efficient replacement – the only welds in the entire system are in the flanges to the headers and every weld is back purged for maximum weld strength and durability. The brackets are adjustable for the best possible fitment and the rear pipes are easily replaced in the event of collision damage. 2″ straight piping keeps exhaust velocity high and weight down. Sound attenuating components like resonators are decidedly absent to reduce weight and complexity as PCA Club Races are not hosted on sound limited days. Should decibel limits be considered for other competition series or HPDE events on sound restricted tracks, alternative solutions can be used. The end result is a race bred system that will hold up to the stresses of racing and last until you podium – and beyond.
CONSTRUCTION:
Each system is made in-house by our fabrication team from mandrel bent .065″ wall, 2″ diameter T304L stainless steel tubing and laser cut brackets. All welds are back purged for increased longevity under the most extreme conditions.
BOLT ON AND GO:
Each exhaust component is rigorously quality-checked, tested in a fixture to ensure perfect fitment, and then foam packed to ensure it arrives in perfect condition. New high grade hardware is included.
CHECK ENGINE LIGHT?:
This race exhaust will trigger a check engine light due to removal of factory catalytic converters and deletion of the secondary o2 sensors. If this is bothersome, some race shops servicing SPB cars recommend turning off the CEL via removal of the CEL bulb.
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 exhaust is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for closed course competition 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.986.RE
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster 986 2.7L 2003-04
Experience the perfect balance of refinement and excitement with the SOUL Street Package for Porsche 981 Boxster and Cayman models. This system pairs SOUL Valved Exhaust with Long Tube Street Headers, delivering noticeable power gains, sharper throttle response, and a soundtrack that adapts to your driving mood—all without triggering a check engine light. With valves closed, the system offers a smooth, drone-free tone ideal for daily driving. Open the valves, and the flat-six unleashes its full roar through a straight-through flow path, exiting via exhaust tips in the style and finish of your choice. Built around large-diameter runners and high-flow catalytic converters, the headers maximize flow while enhancing that signature Porsche sound. Every system is backed by our industry-leading Lifetime Warranty, giving you confidence both on the street and at the track.
Package Includes:
• SOUL Performance Products 981 Cayman Valved Exhaust System
• SOUL Performance Products 981 Cayman Long Tube Street Headers
• Fits all Porsche 981 Boxster / Cayman models (2013–2016)
• Increased performance and sound with no check engine light
• Direct bolt-on installation with included instructions
• Multiple tip styles and finishes available – custom options too
• Covered by SOUL’s Lifetime Warranty for street and track use
DEVELOPMENT:
For the 981 platform, we engineered a system with properly sized 2” runners and optimized collectors to unlock maximum power from the 3.4L engine, while still delivering impressive gains on the 2.7L. We selected high-flow catalytic converters sized for both performance and durability—avoiding the compromises of smaller, cheaper alternatives. The result is a superior exhaust that delivers a broad spectrum of sound: valves open reveal a CUP car–inspired roar, while valves closed provide a refined, drone-free tone. Thanks to SOUL mufflers, even with aftermarket headers the exhaust remains composed and reserved when the valves are shut.
CONSTRUCTION:
Our headers are precision-engineered and crafted from T304L stainless steel for strength and performance. Featuring port-matched flanges, smooth-radius primary tubing, and optimized collectors, they deliver maximum exhaust flow and power gains. Each system is mandrel-bent, fitted with reinforced muffler casings for durability, and rigorously quality-checked before shipping to ensure the highest standards.
TIPS:
Choose from several different tip styles and finishes – from single wall 321 stainless tips to double wall chrome tips. Logo customization and custom tip colours are available by request. Titanium single wall tips are also available and save nearly a pound of weight over stainless steel tips!
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 issues or answer any questions 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.STPKG
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
The SOUL 986 Street Exhaust Package upgrades your factory system with a precision-engineered header and exhaust setup that boosts power while delivering an aggressive yet refined Porsche sound. Premium high-flow catalytic converters ensure clean performance without triggering check engine lights.
• Compatible with all Porsche 986 Boxster models (2000–2004)
• Backed by SOUL Performance Products’ Lifetime Warranty for both street and track use
DEVELOPMENT:
The Porsche 986 Boxster offers excellent performance potential but suffers from a restrictive factory exhaust. The stock headers use oversized catalytic converters, thin flanges, and crushed primary tubing that limit flow, while the OEM exhaust adds a secondary set of converters that further choke power. The SOUL 986 Street Exhaust Package addresses all of these weak points with a complete header and cat-back system engineered to work in harmony. Designed for performance and sound balance, the system boosts excitement without introducing unwanted drone—SOUL mufflers keep the tone refined during partial throttle, even when paired with aftermarket catless headers. No valves are needed; the result is a system that’s loud when you want it to be, yet comfortably reserved around town.
CONSTRUCTION:
Our headers are crafted from premium T304L stainless steel and engineered for maximum performance. With port-matched flanges, smooth-radius primary tubing, and optimized collectors, they deliver improved exhaust flow and noticeable power gains. Each set is mandrel-bent, rigorously inspected, and fitted with mufflers featuring reinforced casings for long-lasting durability. Merge spikes further enhance flow efficiency at the collector, while a range of 321 stainless steel tip styles and finishes—or fully customized options—let you tailor the perfect look for your Porsche.
BOLT ON AND GO:
Every exhaust component undergoes strict quality checks and is test-fitted in a fixture to guarantee precise alignment. Each system is foam-packed for safe delivery and comes complete with new high-grade hardware for the header-to-exhaust flanges. Detailed installation instructions are also included for a smooth, hassle-free setup.
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 package is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for closed course competition use only
+ Trimming of the inner fender liner and exhaust heat shield is required on all vehicles and headlight auto leveling sensor may need to be disabled / removed and rerouting of brake hard line may be necessary to protect from heat – as such we recommend professional installation. Contact us if you need a dealer / installer recommendation.
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.9862.STPKG
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
The factory exhaust system on the Porsche 981 Cayman and Boxster is bulky and restrictive, muting both performance and sound. The SOUL Valved Exhaust System is designed to free the car’s natural character by reducing weight and incorporating a precision valve system that delivers a dramatic transformation in responsiveness, tone, and driving enjoyment.
With the valves closed, the system produces a refined, sporty exhaust note with zero drone—perfect for comfortable daily driving and discreet neighborhood entries. Open the valves, and the flat-six engine comes alive with an intoxicating motorsport-inspired soundtrack, ideal for spirited back-road drives or track sessions.
• 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
• Valve controller kit included – necessary for cars without PSE and optional for cars with PSE to provide manual valve override
• Covered by SOUL’s Lifetime Warranty for street and track use
DEWELOPMENT:
We wanted to be certain that our system offered a superior spectrum of sound – Cup car inspired with valves open but with a refined, no droning tone with valves closed. The SOUL mufflers practically eliminate droning – even with aftermarket headers the sound is reserved in the cabin with valves closed!
CONSTRUCTION:
Each system is constructed from mandrel-bent T304L stainless steel tubing, featuring 2.5″ over-axle pipes, and equipped with mufflers built with reinforced casings for long-term durability.
• With the valves closed, exhaust gases are directed through SOUL’s high-quality mufflers, packed with premium sound-absorbing material engineered to withstand heavy use without breaking down. These mufflers are highly effective at eliminating drone, channeling gases through perforations into the outer piping for a smooth, refined tone.
• Open the valves, and exhaust gases flow freely through the large 2.5″ straight-through piping, while the perforations allow the exhaust to interact with the muffler—producing a deeper, fuller, and more aggressive sound that captures the true character of the flat-six engine.
TIPS:
Choose from a variety of tip styles and finishes, ranging from sleek single-wall 321 stainless steel to premium double-wall chrome. For a personalized touch, logo engraving and custom tip colors are available upon request. For those seeking performance benefits, lightweight titanium single-wall tips are also offered—shedding nearly a pound compared to stainless steel options.
BOLT ON AND GO:
Each exhaust system undergoes rigorous quality checks and fixture testing to guarantee precise fitment. Every kit includes detailed installation instructions, making the process straightforward for most DIY enthusiasts. Valve operation integrates seamlessly—controlled via the factory PSE button, included valve controller fobs, and even compatible with HomeLink for added convenience.
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.VES
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
The SOUL Performance Valved Exhaust System is a high-quality 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 3.8L flat-six engine, this performance exhaust replaces the original rear silencer assembly with a stainless steel system incorporating specially developed mufflers, electronically controlled exhaust valves and a selection of premium exhaust tips.
The Porsche 981 GT4 and Boxster Spyder are renowned for their distinctive engine character, high-revving performance and engaging driving experience.
SOUL Performance has engineered this exhaust system to enhance those qualities while maintaining the flexibility required for both everyday driving and more enthusiastic use.
Unlike a permanently loud aftermarket exhaust, the SOUL Valved Exhaust System provides two selectable sound characteristics.
With the exhaust valves closed, gases are directed through the integrated SOUL mufflers, which contain high-quality sound-absorbing material.
This arrangement produces a deeper, refined exhaust tone while minimising unwanted cabin drone during steady motorway driving.
With the exhaust valves open, the exhaust gases can flow through a more direct 2.5-inch exhaust path, producing a louder, more aggressive exhaust note.
The open-valve arrangement highlights the characteristic sound of the Porsche flat-six engine, particularly during acceleration, high-RPM operation and downshifts.
Manufactured from mandrel-bent T304L stainless steel, the system is designed to provide durability, corrosion resistance and consistent exhaust flow.
The over-axle pipes feature a 2.5-inch outside diameter, while the reinforced muffler casings are designed to withstand repeated heating and cooling cycles.
The system also incorporates carefully positioned perforations that allow exhaust pulses to interact with the mufflers even when the valves are open, encouraging a fuller and more rounded exhaust tone.
A selection of exhaust tip styles and finishes allows owners to customise the rear appearance of their Porsche.
Available manufacturer options include 321 stainless steel exhaust tips and lightweight single-wall titanium tips.
The system is designed to work with the Porsche factory exhaust valve controls, allowing the driver to retain familiar operation through the original exhaust button.
SOUL also identifies compatibility with its optional remote valve controllers and HomeLink-based control arrangements.
Each exhaust system is fixture-tested before dispatch and supplied with installation instructions for a direct bolt-on installation on compatible vehicles.
Backed by SOUL Performance's lifetime warranty, subject to the manufacturer's terms, this valved exhaust is an attractive upgrade for owners looking to improve the sound, character and appearance of their Porsche without permanently sacrificing cruising refinement.
What This Product Does:
The SOUL Performance Valved Exhaust System manages the flow of exhaust gases through the rear exhaust assembly while allowing the driver to select between two distinct exhaust sound characteristics.
Exhaust gases leave the engine through the exhaust manifolds and catalytic converter assemblies before travelling through the rear exhaust system.
The SOUL system receives these gases through its over-axle pipes and directs them towards the exhaust outlets.
The electronically operated exhaust valves determine whether the gases pass predominantly through the sound-absorbing mufflers or follow the more direct exhaust path.
Its primary functions include:
- Directing exhaust gases: Carries spent gases from the upstream exhaust components towards the rear outlets.
- Providing selectable exhaust sound: Allows quieter and louder operating modes.
- Reducing motorway drone: Uses dedicated muffler construction to minimise unwanted low-frequency resonance.
- Enhancing engine sound: Produces a deeper and more pronounced naturally aspirated flat-six soundtrack.
- Supporting efficient exhaust flow: Uses mandrel-bent tubing and a more direct flow path with the valves open.
- Maintaining driver control: Integrates with the factory exhaust valve control system.
- Supporting everyday comfort: Offers a more restrained exhaust character with the valves closed.
- Enhancing spirited driving: Provides a stronger exhaust note during acceleration and downshifts.
- Improving rear-end appearance: Incorporates a choice of premium exhaust tip styles and finishes.
- Providing durable construction: Uses stainless steel components designed for demanding exhaust temperatures.
- Supporting compatible performance upgrades: Can be paired with appropriate factory or aftermarket header configurations.
- Maintaining a factory-style installation: Uses mounting and connection arrangements intended for compatible vehicles.
How Do The Exhaust Valves Work:
Valves Closed – Refined Touring Sound
When the valves are closed, exhaust gases are directed through the SOUL mufflers.
The mufflers contain durable sound-absorbing material designed to reduce unwanted resonance while maintaining a sporting exhaust note.
This setting is intended for normal road driving, longer journeys and situations where a more restrained exhaust sound is preferred.
Benefits include:
- A deeper but more controlled exhaust note.
- Reduced low-frequency cabin resonance.
- Improved cruising refinement compared with an unrestricted exhaust.
- A sporting sound without permanently operating at maximum volume.
- Convenient operation using the existing exhaust controls.
SOUL states that its system is designed to avoid unwanted motorway drone when paired with factory headers or appropriate high-flow catted headers.
Valves Open – Enhanced Performance Sound
With the valves open, exhaust gases can travel through the larger, more direct 2.5-inch piping.
This reduces the amount of sound attenuation compared with the closed-valve arrangement.
The result is a stronger exhaust sound that becomes particularly noticeable during acceleration and higher engine speeds.
Benefits include:
- A louder and more aggressive flat-six exhaust note.
- Greater exhaust character during acceleration.
- A more pronounced sound during downshifts.
- A fuller tone from the specially designed muffler and pipe arrangement.
- A more engaging driving experience.
Why Upgrading Matters:
The SOUL Performance Valved Exhaust System is designed for drivers who want a more engaging exhaust note without permanently compromising daily driving comfort.
It combines performance-oriented construction with the convenience of selectable exhaust sound.
1. Enhanced Flat-Six Sound
- The 3.8L naturally aspirated engine fitted to the Porsche 981 GT4 and Boxster Spyder produces a distinctive high-revving exhaust note.
- The SOUL system is designed to amplify and refine this sound, producing a deeper tone with the valves closed and a more aggressive character with the valves open.
2. Selectable Exhaust Volume
- The electronic valve arrangement allows the driver to choose between two different exhaust modes.
- This makes the system suitable for owners who want a more pronounced sound during spirited driving but prefer a quieter exhaust on longer journeys.
3. Reduced Unwanted Drone
- The SOUL mufflers use sound-absorbing materials and a carefully developed internal design to minimise unwanted resonance.
- This is particularly valuable during steady motorway driving, where permanently loud exhaust systems can become tiring.
4. Improved Exhaust Flow Potential
- The system uses mandrel-bent stainless steel tubing and a more direct exhaust path when the valves are open.
- This arrangement is designed to support efficient exhaust gas movement.
- It may complement other performance upgrades, but specific horsepower and torque gains have not been verified for this exhaust system alone.
5. Factory Exhaust Valve Control Compatibility
- The system is compatible with the original Porsche exhaust valve controls.
- Drivers can retain the familiar exhaust control operation rather than relying on a completely separate system.
- Optional SOUL valve-control solutions may offer additional operating flexibility.
6. Durable Stainless Steel Construction
- The T304L stainless steel exhaust tubing and reinforced muffler casings are designed to withstand high temperatures, vibration and repeated thermal cycles.
- The use of corrosion-resistant materials makes the system suitable for long-term enthusiast use.
7. Premium Exhaust Tip Options
- A choice of stainless steel and titanium exhaust tips allows owners to customise the vehicle's rear appearance.
- Titanium single-wall tips offer a lightweight alternative to stainless steel.
8. Direct Bolt-On Installation
- The system is designed as a direct replacement for the compatible factory rear exhaust.
- SOUL fixture-tests its exhaust assemblies and supplies installation instructions.
9. Retention of the Upstream Exhaust System
- This is a rear exhaust upgrade rather than a complete exhaust manifold and catalytic converter replacement.
- Compatible original headers and catalytic converters can remain installed.
10. Manufacturer's Lifetime Warranty
- SOUL Performance backs the system with its lifetime warranty for street and track use, subject to the published warranty conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.GT4.VES.
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 Valved Exhaust System is a high-quality aftermarket sports exhaust upgrade specifically designed 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
Developed for Porsche's naturally aspirated flat-six engines, this exhaust system replaces the original rear exhaust assembly with a lighter, freer-flowing stainless steel system incorporating performance silencers, vacuum-operated exhaust valves, an X-pipe outlet and premium exhaust tips.
The Porsche 987.2 Boxster and Cayman are known for their responsive engines, balanced chassis and distinctive flat-six engine sound.
SOUL Performance developed this valved exhaust to enhance the driving experience by providing a deeper, fuller exhaust note while retaining the flexibility to switch between refined and aggressive sound characteristics.
Unlike a conventional non-valved sports exhaust, the SOUL system features two distinct operating modes.
With the exhaust valves closed, exhaust gases are directed through specially developed silencers containing high-quality sound-absorbing material. This produces a more controlled exhaust tone and is designed to minimise unwanted cabin drone, particularly during steady motorway driving.
With the valves open, exhaust gases follow a more direct route through the 2.5-inch pipework, producing a noticeably louder and more aggressive flat-six soundtrack.
The system incorporates perforated passages that allow exhaust pulses to interact with the silencers, helping create a fuller and more rounded sound even when the valves are open.
Manufactured from mandrel-bent T304L stainless steel, the exhaust is designed for durability, corrosion resistance and efficient exhaust gas flow.
The reinforced silencer casings and strengthened mounting brackets are engineered to withstand repeated thermal cycles, exhaust vibration and demanding driving conditions.
SOUL Performance states that its exhaust weighs approximately 30 lb, compared with 35 lb for the equivalent factory exhaust components, providing a weight saving of approximately 5 lb (2.2 kg).
A key advantage is its compatibility with vehicles both with and without factory Porsche Sport Exhaust (PSE).
On PSE-equipped vehicles, the SOUL exhaust can use the existing factory exhaust valve control arrangement.
For vehicles without PSE, SOUL includes a valve controller kit that allows the driver to operate the exhaust valves using a remote control.
The controller kit can also be installed on PSE-equipped vehicles to provide manual valve override.
A variety of premium exhaust tip styles and finishes allows owners to personalise the rear appearance of their Porsche.
Available options include 321 stainless steel exhaust tips and lightweight single-wall titanium tips.
Each system is quality-checked and fixture-tested before dispatch to ensure consistent installation fitment.
Designed as a direct bolt-on replacement for the compatible original rear exhaust, the kit includes installation instructions and specified mounting hardware.
Backed by SOUL Performance's lifetime warranty, subject to the manufacturer's terms, this Valved Exhaust System is an ideal upgrade for Porsche owners seeking improved exhaust sound, selectable driving characteristics, reduced weight and durable stainless steel construction.
What This Product Does:
The SOUL Performance Valved Exhaust System directs combustion gases through the rear exhaust while allowing the driver to change the exhaust gas flow path and resulting sound.
During engine operation, exhaust gases leave the cylinder heads, pass through the exhaust manifolds and catalytic converters, and enter the rear exhaust system.
The SOUL exhaust then routes these gases through its stainless steel pipework and silencers before they exit through the rear exhaust tips.
The position of the exhaust valves determines the path taken by the gases.
Its main functions include:
- Directing exhaust gases: Carries combustion gases from the upstream exhaust components to the rear outlets.
- Providing selectable exhaust sound: Allows quieter and louder exhaust characteristics.
- Reducing unwanted drone: Uses sound-absorbing silencers to minimise low-frequency cabin resonance.
- Enhancing engine sound: Produces a deeper and more aggressive flat-six exhaust note.
- Supporting efficient exhaust flow: Uses mandrel-bent stainless steel tubing and a more direct open-valve flow path.
- Maintaining driver control: Allows the exhaust sound to be selected using the appropriate factory or supplied controller.
- Improving cruising refinement: Provides a quieter exhaust configuration for steady driving.
- Enhancing spirited driving: Delivers a stronger exhaust note during acceleration and high-RPM operation.
- Reducing exhaust weight: Offers a manufacturer-reported 5 lb saving over the original components.
- Maintaining durable construction: Uses corrosion-resistant stainless steel and reinforced mounting components.
- Enhancing rear-end styling: Offers different exhaust tip materials, styles and finishes.
- Supporting performance upgrades: Can complement compatible aftermarket exhaust headers.
Why Upgrading Matters:
1. Enhanced Flat-Six Exhaust Sound
The SOUL exhaust is designed to bring out more of the naturally aspirated Porsche engine's characteristic sound.
Drivers can enjoy a fuller and more aggressive exhaust note without permanently operating at maximum volume.
2. Selectable Exhaust Characteristics
The valved arrangement provides two different sound modes.
This makes the system more versatile than a permanently loud, non-valved exhaust.
3. Reduced Motorway Drone
The specially designed silencers help minimise unwanted low-frequency resonance.
SOUL specifically reports drone-free closed-valve motorway operation when combined with the original factory headers.
4. Improved Exhaust Flow Potential
The system uses mandrel-bent 2.5-inch over-axle pipework and a more direct exhaust path when the valves are open.
This is intended to support efficient exhaust gas movement.
5. Manufacturer-Reported Performance Improvements
SOUL Performance reports Dynojet testing on a Porsche 987.2 Cayman S fitted with its Valved Exhaust System and Long Tube Street Headers.
The manufacturer recorded maximum improvements of approximately:
8 wheel horsepower. 11 lb-ft of torque.
These gains were recorded around 4,100 RPM in the tested combined configuration.
Important: These figures should not be presented as guaranteed gains from the Valved Exhaust System alone.
6. Reduced Exhaust Weight
SOUL states that its Valved Exhaust System weighs approximately 30 lb compared with 35 lb for the factory components.
This represents a saving of approximately 5 lb (2.2 kg).
7. Compatibility with Factory PSE
Vehicles already equipped with Porsche Sport Exhaust can retain compatible factory-style valve operation.
The supplied SOUL controller can also offer manual override.
8. Valve Control for Non-PSE Vehicles
Vehicles without factory PSE can gain selectable exhaust sound using the supplied SOUL valve controller kit.
This is particularly useful for owners who want the versatility of a valved exhaust without an original factory PSE system.
9. Durable Stainless Steel Construction
The T304L stainless steel tubing offers corrosion resistance and durability under demanding exhaust operating temperatures.
10. Reinforced Exhaust Mounting
SOUL incorporates strengthened brackets and reinforced silencer casings.
These are designed to withstand repeated vibration and thermal cycling during road and track driving.
11. Premium Exhaust Tip Options
Owners can select different stainless steel and titanium exhaust tip styles.
This allows the rear appearance of the vehicle to be personalised.
12. Direct Bolt-On Installation
The system is designed for the original compatible mounting arrangement.
SOUL fixture-tests each exhaust and supplies the relevant installation instructions and hardware.
13. Manufacturer Lifetime Warranty
The exhaust components are covered by SOUL Performance's lifetime warranty for street and track use, subject to its published terms.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.9872.VES.
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
Rear silencer and catalytic converters
Fits
Porsche 987 Gen 2 Boxster 2.9Ltr
Porsche 987 Gen 2 Boxster S 3.4Ltr
Porsche 987 Gen 2 Cayman 2.9Ltr
Porsche 987 Gen 2 Cayman S 3.4Ltr
RACETRACK USE ONLY
These components are designed and developed for racetrack use and to maximise the car's performance. They are not street legal and must be installed by professionals in the sector
SOUND - TUBI SOUND
Tubi Sound is the standard sound of Tubi Style exhausts, louder and more powerful than the original sound. This sound represents our brand
EXHAUST VALVE - NO VALVE
The exhaust system does not include a valve and always guarantees the most impressive sound. If the standard system includes one, control of the valve by both the engine ECU and by the pilot via the specific control systems is no longer possible
SYSYEM FINISH - POLISHED
Mirror finishes are highly reflective and created by polishing the stainless steel. The polishing process enhances appearance and consistency, making cleaning easier. A special rolling procedure is used. It is essential to remove deep scratches as any surface defects will be very noticeable on the finished product. it improves corrosion resistance. The polishing eradicates crevices where corrosive particles can lodge themselves
END TIPS NUMBER AND POSITION - 2 CENTRAL
The end tips emerge from the centre
MATERIAL - AISI 304 STAINLESS STEEL
A choice stainless steel ideal for aggressive environments where combustion emissions can cause serious chemical corrosion on other types of metal
MAIN PIPE DIMENSION 50mm
This is the diameter of the main pipe of the exhaust system
Please note: sports catalytic converters or bypass pipes do have type approval and may not be legally installed on vehicles manufactured after 1st March 2001. They can not be used on a public road and are not MOT compliant, they are designed for race and track cars only.
- 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
-
exhaust system M 96.20 for 986 Boxster 1997-04 202-00
-
exhaust system for 986 Boxster M 96.21/22 2000-02 and 986 Boxster M 96.23/24 2003 ONWARDS 202-05
-
Exhaust system, Sport version - PR:XLF - 987.2 Boxster / Boxster S 2009-12 202-005
-
Exhaust system 981 Boxster / Boxster S 2012-16 202-000
-
Exhaust system Sport (PR:XLF) 981 Boxster / Boxster S 2012-16 202-005
-
Exhaust system 981.SP Boxster Spyder 2016 202-000
Standard Exhaust Systems – Engineered for Performance, Sound & Longevity
A standard exhaust system is essential for your Porsche’s performance, efficiency, and sound. It controls the flow of exhaust gases from the engine, reduces emissions, manages noise levels, and ensures balanced back pressure for optimal power delivery.
At Design911, we supply standard exhaust systems built from high-grade stainless steel and corrosion-resistant materials. Designed to meet or exceed manufacturer performance standards, these systems deliver the perfect blend of durability, refinement, and performance — ideal for both daily driving and restoration projects.
Each exhaust system is developed to ensure precise fitment, excellent gas flow, and an authentic Porsche exhaust note that retains the car’s original character.
What Do Standard Exhaust Systems Do?
A standard exhaust system performs several vital roles that keep your Porsche running efficiently, cleanly, and safely.
Core Functions:
- Directs
exhaust gases safely away from the engine.
- Reduces
emissions through catalytic converters and silencers.
- Controls
back pressure for balanced performance and fuel efficiency.
- Minimises
engine noise while preserving Porsche’s signature tone.
- Aids temperature regulation and exhaust scavenging.
A properly maintained exhaust system ensures smooth performance, reduced fuel consumption, and compliance with emissions regulations.
Why Do Exhaust Systems Fail?
Exhaust systems are constantly exposed to heat, moisture, and corrosive gases — all of which take a toll over time.
Common Causes of Failure Include:
- Corrosion
and rust from road salt, condensation, and moisture.
- Cracked
welds or pipes due to vibration and thermal cycling.
- Internal
baffle damage causing rattling or loss of silencing effect.
- Blocked
or leaking joints leading to reduced performance and increased noise.
- Burnt-out catalytic converters or mufflers reducing efficiency.
Signs of exhaust failure include loud noises, rattling,
exhaust odours, or reduced engine performance — all clear indicators that
replacement is required.
Why Replace Standard Exhaust Components?
Replacing a worn or damaged exhaust system restores performance, comfort, and efficiency while maintaining your Porsche’s distinctive exhaust tone.
Key Benefits:
- Restores proper exhaust flow and back pressure.
- Improves fuel efficiency and power output.
- Reduces noise and vibration.
- Ensures emissions compliance and MOT readiness.
- Built from corrosion-resistant stainless steel for longevity.
- Direct-fit compatibility for classic and modern Porsche models.
Upgrading to a high-quality standard exhaust preserves the car’s original performance characteristics while ensuring long-lasting reliability.
Highlights:
- Precision-engineered exhaust systems for Porsche vehicles.
- Optimised gas flow for power, torque, and efficiency.
- Durable stainless-steel construction for corrosion resistance.
- Designed for authentic tone and perfect fitment.
- Suitable for classic restoration and modern maintenance.
- Reliable, quiet, and performance-balanced solutions.