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Manifold / Headers

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DISPLAYING 33 to 42 (of 42 products)
1 2 3
FSPOR9862RHDR
Product Information
Product Information
Fabspeed Race Headers.
The Fabspeed Porsche 986 Boxster Race Headers are a competition-focused exhaust upgrade designed for maximum exhaust flow, improved scavenging, reduced restriction and sharper engine response on 2000–2004 Porsche 986.2 Boxster and Boxster S models.

Fits:
  • Porsche Boxster 986 2.7L 2000-02
  • Porsche Boxster S 986 3.2L 2000-02
  • Porsche Boxster 986 2.7L 2003-04
  • Porsche Boxster S 986 3.2L 2003-04  

Unlike Fabspeed's Sport Headers, these Race Headers do not contain catalytic converters. They replace the factory Porsche headers and their integrated primary catalysts with free-flowing equal-length headers, making them intended specifically for closed-course competition, race and off-road applications.

Constructed from equal-length T304 stainless-steel CNC mandrel-bent tubing, the headers use F1-style merge collectors to improve exhaust-gas velocity and scavenging. They can be used with the factory rear muffler or compatible aftermarket cat-back exhaust systems designed around the OEM mounting arrangement.

What This Product Does:
Headers collect exhaust gases as they leave the engine's cylinder heads and direct them into the remainder of the exhaust system.

The design, length and geometry of the individual primary tubes influence how efficiently these gases leave each cylinder.

The Fabspeed Race Headers replace the original catalyst-equipped manifolds with a freer-flowing, equal-length arrangement.

They are designed to provide:

  • Maximum exhaust-gas flow
  • Reduced exhaust restriction
  • Reduced backpressure
  • Improved exhaust scavenging
  • Improved cylinder evacuation
  • Increased performance potential
  • Sharper throttle response
  • Improved high-RPM breathing
  • Reduced exhaust-system weight
  • More aggressive flat-six exhaust sound

Removes The Factory Catalytic Converters:
  • On 2000–2004 Porsche 986 Boxster models, the factory headers incorporate primary catalytic converters.
  • The Fabspeed Race Headers remove these catalysts entirely.
  • This creates a substantially less restrictive exhaust path but also means the product is fundamentally different from a street-oriented catalyst-equipped replacement header.
  • The Race Headers are intended for vehicles where maximum exhaust flow is prioritised over emissions-system compatibility.

Why Upgrading Matters:
The factory headers do not need to have failed before installing this product.

These Race Headers are primarily a competition performance upgrade.

Reasons for upgrading include:

  • Removes restrictive OEM catalytic converters
  • Maximum exhaust-flow design
  • Equal-length primary tubes
  • T304 stainless-steel construction
  • CNC mandrel-bent tubing
  • F1-style merge collectors
  • Improved exhaust scavenging
  • Reduced exhaust backpressure
  • Improved throttle response
  • Increased performance potential
  • Reduced exhaust-system weight
  • More aggressive flat-six sound
  • O2 sensor bungs incorporated
  • Compatible with factory rear muffler
  • Compatible with OEM-style aftermarket cat-back exhausts
  • Direct replacement installation
  • No cutting or welding required



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

FSPOR9862RHDR
99611110105
99611110106
99611110205
99611110206

The product you are viewing cross references to these numbers
FSPOR9861SHDR
Product Information
Product Information
Fabspeed Sport Headers.
The Fabspeed Porsche 986 Boxster Sport Headers are a performance exhaust upgrade designed to improve exhaust flow, scavenging, throttle response and flat-six sound on Porsche 986 Boxster.

Fits:
  • Porsche Boxster 986 2.5L 1997-99

The headers use equal-length CNC mandrel-bent primary tubes combined with F1-style high-velocity merge collectors. This configuration is designed to improve the way exhaust gases leave each cylinder and merge into the exhaust system, reducing unnecessary restriction and supporting more efficient engine breathing.

1997–1999 Porsche 986 Boxster / Boxster S: The factory headers do not incorporate primary catalytic converters, so the Fabspeed headers for these vehicles are supplied without sport catalysts.

Fabspeed reports +8 wheel horsepower and +4 lb-ft of torque when the Sport Headers are installed with the Fabspeed Maxflo Performance Exhaust System. These are manufacturer-reported figures from a specific vehicle and are not guaranteed results for every application.

What This Product Does:
Exhaust headers collect combustion gases as they leave the engine's cylinder heads and direct them into the remainder of the exhaust system.

The design and length of the individual primary tubes influence how efficiently these exhaust pulses leave the cylinders.

The Fabspeed Sport Headers are designed to improve this process through equal-length primary tubing and high-velocity merge collectors.

Potential benefits include:

  • Improved exhaust flow
  • Improved exhaust scavenging
  • Reduced exhaust restriction
  • Improved cylinder evacuation
  • Sharper throttle response
  • Increased horsepower and torque potential
  • Stronger high-RPM performance
  • Enhanced naturally aspirated flat-six sound

1997-1999 Header Configuration: 
  • On 1997–1999 Porsche 986 Boxster and Boxster S models, the factory headers do not contain primary catalytic converters.
  • Fabspeed therefore supplies these model-year applications without catalytic converters incorporated into the Sport Headers.
  • This is an important distinction when ordering because the header configuration differs from later 986 models.

Why Upgrading Matters:
The original Porsche headers do not need to have failed before fitting the Fabspeed Sport Headers.

This product is primarily a performance and sound upgrade.

Reasons for upgrading include:

  • Equal-length primary tubes
  • CNC mandrel-bent construction
  • F1-style high-velocity merge collectors
  • Improved exhaust scavenging
  • Improved exhaust flow
  • Reduced exhaust restriction
  • Increased performance potential
  • Sharper throttle response
  • Enhanced flat-six exhaust sound
  • Bolt-on installation
  • Designed specifically for Porsche 986 Boxster and Boxster S models



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

FSPOR9861SHDR
99611110205
99611110206
99611110105
99611110106

The product you are viewing cross references to these numbers
FSPOR9862SHDR
Product Information
Product Information
Fabspeed Sport Headers.
The Fabspeed Porsche 986 Boxster Sport Headers are a performance exhaust upgrade designed to improve exhaust flow, scavenging, throttle response and flat-six sound on Porsche 986 Boxster and Boxster S models from 2000–2004.

Fits:
  • Porsche Boxster 986 2.7L 2000-02
  • Porsche Boxster S 986 3.2L 2000-02
  • Porsche Boxster 986 2.7L 2003-04
  • Porsche Boxster S 986 3.2L 2003-04  

The headers use equal-length CNC mandrel-bent primary tubes combined with F1-style high-velocity merge collectors. This configuration is designed to improve the way exhaust gases leave each cylinder and merge into the exhaust system, reducing unnecessary restriction and supporting more efficient engine breathing.

2000–2004 Porsche 986 Boxster / Boxster S: The original headers incorporate primary catalytic converters. Fabspeed therefore supplies these applications with 200-cell HJS Sport Catalytic Converters.

Fabspeed reports +8 wheel horsepower and +4 lb-ft of torque when the Sport Headers are installed with the Fabspeed Maxflo Performance Exhaust System. These are manufacturer-reported figures from a specific vehicle and are not guaranteed results for every application.


What This Product Does:
Exhaust headers collect combustion gases as they leave the engine's cylinder heads and direct them into the remainder of the exhaust system.

The design and length of the individual primary tubes influence how efficiently these exhaust pulses leave the cylinders.

The Fabspeed Sport Headers are designed to improve this process through equal-length primary tubing and high-velocity merge collectors.

Potential benefits include:

  • Improved exhaust flow
  • Improved exhaust scavenging
  • Reduced exhaust restriction
  • Improved cylinder evacuation
  • Sharper throttle response
  • Increased horsepower and torque potential
  • Stronger high-RPM performance
  • Enhanced naturally aspirated flat-six sound

2000-2004 Header With HJS Sport Catalysts: 

For 2000–2004 Porsche 986 Boxster and Boxster S models, the original Porsche headers incorporate primary catalytic converters.

Fabspeed's replacement headers for these vehicles therefore incorporate 200-cell HJS Sport Catalytic Converters.

The lower-density sport catalyst design is intended to provide greater exhaust flow than a more restrictive conventional catalyst while retaining catalytic converter functionality.

Potential benefits include:

  • Reduced catalyst restriction
  • Improved exhaust flow
  • Reduced backpressure
  • Improved performance potential
  • Stronger exhaust sound


Why Upgrading Matters:
The original Porsche headers do not need to have failed before fitting the Fabspeed Sport Headers.

This product is primarily a performance and sound upgrade.

Reasons for upgrading include:

  • Equal-length primary tubes
  • CNC mandrel-bent construction
  • F1-style high-velocity merge collectors
  • Improved exhaust scavenging
  • Improved exhaust flow
  • Reduced exhaust restriction
  • Increased performance potential
  • Sharper throttle response
  • Enhanced flat-six exhaust sound
  • 200-cell HJS Sport Catalytic Converters on 2000–2004 versions  
  • Bolt-on installation
  • Designed specifically for Porsche 986 Boxster and Boxster S models



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

FSPOR9862SHDR
99611110400
99611110300

The product you are viewing cross references to these numbers
3606308601
Product Information
Product Information
Headers sports Stainless Steel (Titanium Alloy) (PAIR)



Fits:
Porsche Boxster 986 2.5L / 2.7L / 3.2L Manual gearbox only

DesignTek sports headers for throaty sports car sound, but not too loud for every day driving, manufactured from extra heavy duty stainless steel, which eliminates the splitting, cracking and annoying resonance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

3606308601
3606308601
3606308602
99611110106
99611110206
99611110105
99611110205
99611110300
99611110400

The product you are viewing cross references to these numbers
SL-In-12
Product Information
Product Information
High performance stud + nut kits for the exhaust manifold to cylinder head for Porsche. Using titanium and Inconel alloy studs, aerospace lock nuts, and a well-thought and balanced combination of metals and plating/coatings, our fasteners will perform better than the traditional fastener. They will never oxidize, and hence will unscrew easily when required.



Novel ultra-high-performance product
• Use of Inconel 718 and aerospace technology
• Extreme perceived quality

Contains 12 x Studs, Nuts & Washers

Fits:
Porsche 911 1965-77
Porsche 964 (non Turbo)
Porsche 993 All
Porsche 996 (non Turbo)
Porsche 997 (non Turbo)
Porsche 986 All
Porsche 987 All
Porsche 718 4 Cyl Turbo

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

SL-In-12
99906200602
99908400201
99908400201
90006010601
99907507100
90037813100
9990750710A
99907507400
90037813100
90007428702
99907353501
99907358901

The product you are viewing cross references to these numbers
90021901500/1
Product Information
Product Information
Screw plug for lambda hole, M18x1.5 mm.



Fits:
Porsche 924S 2.5L 1987-88 (Engine M44.09/M44.10)
Porsche 944 2.5L 1987-90 (Engine M44.09/M44.10)
Porsche 944 Turbo 2.5L 1985-91
Porsche 944S 2.5L 1986-88 (Engine M44.40)
Porsche 944 2.7L 1988-89
Porsche 944 3.0L 1988-91
Porsche 996 GT3 3.6L 1999-05
Porsche 968 3.0L 1991-95
Porsche 986 Boxster 2.5L 1996-99 (Engine M96.20)
Porsche 986 Boxster S 2.7L-3.2L 1999-04
Porsche 993 3.6L-3.8L 1993-97
Porsche 997 3.6L 2004-08 (Engine M95.05)
Porsche 997 3.8L 2004-08 (Engine M97.01)

Click 'Zoom in' for large parts diagram.
Diagram ref no 20

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90021901500
90021901500

The product you are viewing cross references to these numbers
POR.981.COH
Product Information
Product Information
Porsche 981 Boxster / Cayman SOUL Competition Headers

Offering the greatest gains in power and sound, SOUL Competition Headers for the Porsche 981 are an excellent performance upgrade from the heavy and restrictive stock manifolds. You’ll notice the 11 lb weight savings, decreased operating temperatures, and improved engine response all while separating your car from the crowd with the increase in tone.

• Fits all Porsche 981 Cayman / Boxster vehicles (2013-2016)
•  Direct bolt on installation – instructions included
•  Constructed from 14-16ga T304L stainless steel tubing
•  All SOUL Performance Products components are backed by a renowned Lifetime Warranty for both street and track use

DEVELOPMENT AND TESTING:
By creating a unique application for the 981 platform, we’ve focused on sizing the runners (2”) and collectors correctly to extract maximum power from the 3.4L engine while producing great gains from the 2.7L as well.

DYNO RESULTS:
A 981 Cayman S with SOUL Valved Exhaust, intake, and ECU tune added Competition Headers and IPD plenum and GT3 throttle body for comparison. Comparing the average performing run of both sessions shows gains of 26 whp (303->329) and 24 ft-lbs of torque (276->300).

CONSTRUCTION: 

Our precision engineered headers are meticulously fabricated from T304L stainless steel. Proven design elements including port matched flanges, smooth radius primary tubing, and collectors that optimize the exhaust flow all work in conjunction to maximize power gains. Every set is rigorously quality-checked prior to shipping.

BOLT ON AND GO:
Each exhaust is tested in a fixture to ensure perfect fitment and then foam packed to arrive in perfect condition. Thorough installation instructions are included in the box for a straightforward install that can be performed by most DIY enthusiasts. New high grade hardware is included.

CHECK ENGINE LIGHT?: This product may trigger a check engine light due to removal of factory catalytic converters. O2 Spacers are available to reduce any chances of triggering a CEL. We suggest a custom ECU tune to disable any check engine lights (for track use only).

LIFETIME WARRANTY: 
Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to resolve any issues or answer any questions that you may have.

NOTE:
+
This product is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for off road use only due to removal of factory catalytic converters

Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

POR.981.COH
98111321101
981113211EX
981113211AX
98111321102
981113211BX
98111321103
981113211CX
98111321106
981113211FX
98111321105
98111321104
98111321201
981113212EX
98111321202
98111321203
981113212AX
981113212CX
98111321204
981113212DX
98111321205
98111321206
981113212FX

The product you are viewing cross references to these numbers
POR.981.STH
Product Information
Product Information
Porsche 981 Boxster / Cayman SOUL Long Tube Street Headers, (w/ HJS 200 cell catalytic converters).

The SOUL Performance Products Long Tube Street Headers are engineered with large-diameter, free-flowing catalytic converters and extended tube runners to deliver maximum gains in horsepower, throttle response, and the signature flat-six soundtrack. Enjoy noticeable performance improvements—without triggering a check engine light!

• Fits all Porsche 981 Cayman / Boxster vehicles (2013-2016)
•  Added performance without a check engine light
•  Direct bolt on installation – instructions included
•  All Soul Performance Products components are backed by a renowned Lifetime Warranty for both street and track use

DEVELOPMENT & TESTING:
Designed specifically for the Porsche 981 platform, these headers feature carefully sized 2” runners and optimized collectors to unlock maximum power from the 3.4L engine, while still delivering impressive gains for the 2.7L.

CONSTRUCTION:
Each header is handcrafted from T304L stainless steel and undergoes rigorous in-house quality checks. Key design elements—such as port-matched flanges, smooth-radius primary tubing, and precision collectors—work together to enhance exhaust flow and maximize performance.

BOLT-ON INSTALLATION:
Every set is fixture-tested for perfect fitment and securely foam-packed for safe delivery. Detailed instructions are included, making installation straightforward for most DIY enthusiasts. 

LIFETIME WARRANTY: 
Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to resolve any issues or answer any questions that you may have.

NOTE:
+ 
This product is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for off road use only

NOTE:  Sports catalytic converters and bypass pipes do not have type approval and are not legally permitted for use on vehicles manufactured after 1st March 2001 in the United Kingdom. They are not MOT compliant and must not be used on public roads. These components are intended for race and track use only. If you are located outside the UK, please consult your local laws and regulations to ensure compliance.

Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

POR.981.STH
98111321101
981113211EX
981113211AX
98111321102
981113211BX
98111321103
981113211CX
98111321106
981113211FX
98111321105
98111321104
98111321201
981113212EX
98111321202
98111321203
981113212AX
981113212CX
98111321204
981113212DX
98111321205
98111321206
981113212FX
POR.981.STH

The product you are viewing cross references to these numbers
SL-Ti-121
Product Information
Product Information
High performance stud + nut kits for the exhaust manifold to cylinder head for Porsche. Using titanium and Inconel alloy studs, aerospace lock nuts, and a well-thought and balanced combination of metals and plating/coatings, our fasteners will perform better than the traditional fastener. They will never oxidize, and hence will unscrew easily when required.



Novel ultra-high-performance product
• Use of Titanium Ti6Al4V technology
• Extreme perceived quality

Contains 12 x Studs, Nuts & Washers

Fits:
Porsche 911 1965-77
Porsche 964 (none Turbo)
Porsche 993 All
Porsche 996 (none Turbo)
Porsche 997 (none Turbo)
Porsche 986 All
Porsche 987 All
Porsche 718 4 Cyl Turbo

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

SL-Ti-121
99906200602
99908400201
99908400201
90006010601
99907507100
90037813100
9990750710A
99907507400
90037813100
90007428702
99907353501
99907358901

The product you are viewing cross references to these numbers
SL-TI-18
Product Information
Product Information
High performance stud + nut kits for the exhaust manifold to cylinder head for Porsche. Using titanium and Inconel alloy studs, aerospace lock nuts, and a well-thought and balanced combination of metals and plating/coatings, our fasteners will perform better than the traditional fastener. They will never oxidize, and hence will unscrew easily when required.



Novel ultra-high-performance product
• Use of Titanium Ti6Al4V technology
• Extreme perceived quality

Contains 18 x Studs, Nuts & Washers

Fits:
Porsche 996 Turbo / GT3 / GT2
Porsche 997 Turbo / GT3 / GT2
Porsche 997.2 ALL
Porsche 991 ALL
Porsche 992 ALL
Porsche 987 2009-12
Porsche 981
Porsche 718 GT4

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

SL-TI-18
90037813100
90037822709
99907507400
90037822701
99907353501
99907507400
99907353501
99907507400

The product you are viewing cross references to these numbers
DISPLAYING 33 to 42 (of 42 products)
1 2 3
Also found on these pages
About Manifold / Headers

Porsche Exhaust Manifolds / Exhaust Headers | Performance, Flow & Efficiency

Exhaust manifolds or exhaust headers are critical components of your Porsche’s exhaust system, designed to collect exhaust gases from the engine cylinders and direct them into the exhaust system for efficient expulsion. Precision-engineered for performance, these components play a vital role in improving engine breathing, power output, and fuel efficiency.

At Design911, we supply a wide range of high-performance and replacement exhaust manifolds for Porsche models, including the 911, Cayman, Boxster, Panamera, and Macan. Each unit is crafted to high-level specifications, ensuring optimal flow dynamics, corrosion resistance, and long-term reliability under high-heat conditions. Whether you’re restoring a classic or upgrading a modern performance engine, our manifolds and headers deliver the quality and performance your Porsche deserves.

What Do Exhaust Manifolds / Headers Do?

The exhaust manifold collects gases from multiple engine cylinders and funnels them into a single exhaust pipe. In performance applications, headers replace standard manifolds to optimise exhaust flow and reduce back pressure. This increases horsepower, torque, and throttle response, while improving the engine’s overall efficiency.

Core Functions:

  • Channels exhaust gases from engine cylinders into the exhaust system.
  • Reduces back pressure for smoother exhaust flow.
  • Enhances power output and throttle response.
  • Improves exhaust scavenging efficiency.
  • Supports emissions and fuel economy control.

Upgrading or maintaining your exhaust manifold is essential for sustaining optimal engine performance and ensuring clean, unrestricted exhaust flow.

Why Do Exhaust Manifolds Fail?

Operating under constant heat cycles and vibration, exhaust manifolds are subject to wear, corrosion, and cracking over time — especially in performance-driven vehicles.

Common Causes of Failure Include:

  • Thermal expansion and contraction leading to cracks or warping.
  • Corrosion from moisture, salt, or condensation.
  • Loose or broken mounting studs and bolts.
  • Exhaust gasket failure causing gas leaks.
  • Material fatigue due to extreme temperature fluctuations.

A failing manifold or header can cause ticking noises, exhaust leaks, loss of power, and reduced fuel efficiency — all indicators that replacement is necessary.

Why Replace or Upgrade Your Exhaust Manifold / Header?

Replacing a damaged exhaust manifold or upgrading to a high-flow performance header provides significant benefits for both reliability and performance.

Key Benefits:

  • Restores smooth exhaust flow and eliminates leaks.
  • Improves horsepower and torque across the rev range.
  • Enhances fuel economy and throttle response.
  • Reduces engine strain and exhaust back pressure.
  • Crafted from high-grade stainless steel or cast materials.
  • Precision fitment for Porsche 911, Cayman, Boxster, and more.

Whether maintaining your daily driver or upgrading for track use, a new manifold or header ensures optimal exhaust flow and maximum performance efficiency.

Highlights:

  • High-quality exhaust manifolds and performance headers for Porsche.
  • Designed for optimal gas flow and exhaust scavenging.
  • Built from corrosion-resistant stainless steel or cast iron.
  • Direct-fit compatibility for multiple Porsche models.
  • Enhances performance while maintaining exhaust efficiency.
  • Ideal for restoration, performance tuning, or regular replacement.

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