Fabspeed Exhaust

Fabspeed Link Comp Pipes.

The Fabspeed Porsche 997.2 GT2 RS Competition Cat Bypass Pipes are a specialist performance exhaust upgrade developed for the 2011 Porsche 911 GT2 RS.

Fits:

• Porsche 997 MKII GT2 RS 2011-13

Designed to replace the factory catalytic converters with straight-through stainless steel pipework, these competition bypass pipes provide a less restrictive exhaust path while delivering a louder, more aggressive motorsport-inspired exhaust note.

The Porsche 997.2 GT2 RS is one of the most focused models in the 911 range, featuring a powerful 3.6-litre twin-turbocharged flat-six engine and a lightweight, track-oriented design.

Its factory exhaust system is engineered to balance high performance with emissions control, durability and noise requirements. The catalytic converters form an important part of that system, treating harmful exhaust gases before they exit the vehicle.

For dedicated motorsport applications where a catalytic converter bypass is permitted, Fabspeed developed these competition pipes to replace the original catalytic converter assemblies with direct-flow alternatives.

Manufactured from high-quality 14–16 gauge T304 stainless steel, the pipes use CNC mandrel-bent tubing to maintain smooth bends and consistent internal dimensions.

The assemblies are TIG-welded to provide strong, precisely joined connections capable of withstanding the demanding temperatures and vibration associated with high-performance turbocharged engines.

Removing the catalytic converters from the exhaust path reduces the restriction associated with the original catalyst assemblies. This may influence exhaust backpressure, turbocharger operating conditions and engine response.

The straight-through design also produces a more pronounced exhaust sound, emphasising the distinctive character of the GT2 RS twin-turbocharged flat-six engine.

Fabspeed developed the pipes specifically for the 2011 Porsche 997.2 GT2 RS, with an application-specific bolt-on configuration that allows the original components to be removed and refitted when required.

This makes the product particularly suitable for dedicated race cars and track-focused GT2 RS builds where the applicable motorsport regulations permit their use.

What This Product Does:
The Fabspeed Competition Cat Bypass Pipes replace the original catalytic converter assemblies with straight-through exhaust sections.

Their primary functions include:

• Replace the Factory Catalytic Converters: Remove the original catalyst assemblies from the corresponding exhaust positions.
• Provide a Direct Exhaust Flow Path: Allow exhaust gases to pass through the replacement pipework without the original catalyst substrates.
• Reduce Catalyst-Related Exhaust Restriction: Eliminate the flow resistance associated with the replaced catalytic converters.
• Support Turbocharger Exhaust Flow: Provide a less restrictive route for gases leaving the turbocharger system.
• Enhance Exhaust Sound: Produce a louder and more aggressive twin-turbocharged exhaust note.
• Support Motorsport Performance: Provide a competition-oriented exhaust configuration for suitable closed-course applications.
• Maintain Smooth Pipe Geometry: CNC mandrel-bent construction helps preserve consistent internal flow through bends.
• Provide Durable Construction: T304 stainless steel offers resistance to exhaust heat and corrosion.
• Use Precision Welding: TIG-welded joints provide durable connections within the exhaust assembly.
• Maintain Vehicle-Specific Fitment: Designed for the 2011 Porsche 997.2 GT2 RS exhaust arrangement.
• Allow Reversible Installation: The factory catalytic converters can be reinstalled using the appropriate mounting hardware and procedures.

Symptoms Of Wear Or Failure:
The Fabspeed Competition Cat Bypass Pipes are primarily a motorsport upgrade rather than a routine service replacement.

However, wear or damage to existing exhaust components may also make exhaust repair or replacement necessary.

Common symptoms include:

• Hissing, ticking or blowing noises.
• Unusual exhaust noise during acceleration.
• Black soot around exhaust joints.
• Exhaust fumes around the rear of the vehicle.
• Visible damage to exhaust connections.
• 
  
• Check engine light.
• Catalyst-efficiency diagnostic fault codes.
• Rattling from damaged catalyst material.
• Increased exhaust restriction.
• Reduced engine performance where a catalyst is severely blocked.
• Failed emissions testing.
• Cracks around welds or mounting flanges.
• Excessive exhaust noise.
• Soot marks around fractures.
• Distorted or bent pipework.
• Increased vibration.

Why Replacement Matters:
Installing the Fabspeed Competition Cat Bypass Pipes changes the exhaust configuration of the Porsche 997.2 GT2 RS by replacing the original catalytic converters with direct-flow pipes.

For suitable motorsport applications, the principal benefits are reduced catalyst-related restriction, a more aggressive exhaust sound and durable competition-oriented construction.

• Less Restrictive Exhaust Path: Removes the original catalytic converter substrates from the exhaust flow.
• Potentially Improved Turbocharger Response: Reduced downstream restriction may contribute to changes in turbocharger operating characteristics.
• Aggressive Motorsport Sound: Enhances the distinctive exhaust note of the GT2 RS twin-turbocharged engine.
• Straight-Through Construction: Provides a direct exhaust passage for competition applications.
• T304 Stainless Steel: Offers excellent resistance to corrosion and high exhaust temperatures.
• CNC Mandrel-Bent Tubing: Maintains smooth bends and consistent pipe dimensions.
• TIG-Welded Construction: Provides strong, precise exhaust pipe connections.
• Application-Specific Design: Developed for the 2011 Porsche 997.2 GT2 RS.
• Bolt-On Installation: Designed to replace the corresponding factory catalytic converter sections.
• Reversible Modification: Allows reinstallation of the original catalyst assemblies.
• Suitable for Track-Focused Builds: Provides an exhaust configuration for appropriate closed-course motorsport applications.
• Fabspeed Motorsport Engineering: Manufactured by a specialist in Porsche performance exhaust development.
• Lifetime Warranty: Covered by Fabspeed's stated lifetime warranty, subject to its applicable conditions.

NOTE: In the United Kingdom, 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. They are not MOT compliant and cannot be used on public roads. These components are intended solely for race and track use.

For vehicles manufactured before 1st March 2001, a non-type approved sports catalytic converter may be fitted, provided it offers comparable performance to the original and the vehicle continues to meet the applicable emissions standards for its age. The vehicle must still pass an MOT test.

If you are located outside the UK, please check your local laws and regulations to ensure compliance.

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FSPOR9972GT2RSCB

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Fabspeed Maxflo Performance Side Exhaust System.

The 997.2 Carrera Maxflo Performance Side Exhaust replaces the factory side mufflers, improving the exhaust flow and the overall power while providing a deep and throaty sports car sound. This system can be used with the OEM outlet tips, or can be upgraded to include Deluxe Quad-Style Tips.

Fabspeed recommends using these Side Mufflers in conjunction with a Center Muffler Bypass X-Pipe for non-PSE equipped cars. There is not a significant sound advantage to using these Side Mufflers alone in conjunction with the factory non-PSE center muffler.

SOUND: 
Get a slightly throatier and deeper exhaust note throughout the RPM range with our Maxflo Side Exhaust.

FEATURES: 
•   Fits all Porsche 997.2 Carrera vehicles (2009-2012)
(2012 was a split model year, a 2012 911 Carrera could be either a 997.2 or 991, please verify if your car is a 997.2 or a 991 before purchase)
•   Saves 8 lbs versus the factory components
•   Improves sports car sound and power throughout the RPM range
•   Constructed from high-quality 14-16ga CNC mandrel-bent T304L stainless steel for optimum flow and maximum durability
•   Direct bolt-on replacement for the factory side mufflers
•   Compatible with Fabspeed's Deluxe Quad Style Tips; also compatible with OEM tips
•   All Fabspeed performance products are backed by the  Fabspeed's Lifetime Warranty

Note: This system can be used with the OEM outlet tips (except for cars equipped with PSE), or can be upgraded to include Deluxe Quad-Style Tips (Quad tips required for PSE).

Please note: This is a special-order item manufactured to order. In some cases, please allow 4 – 5 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.

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FSPOR9972MAX

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Fabspeed Performance Exhaust Package WITH Performance Software.
The Fabspeed Performance Package is a comprehensive exhaust, intake and ECU tuning upgrade designed for the Porsche 911 997.2 GT3.

Kit Contents:

• Center Mini Maxflo Mufflers
• Sport Performance Headers
• Sport Catalytic Converters
• Side Muffler Bypass Pipes
• Carbon Fiber Competition Air Intake (GT3 Only) 
• Deluxe Dual Style Exhaust TipsOptional
• Fabspeed XperTune Performance Software

Fits:

• Porsche 997 MKII GT3 2010-2011

Developed to improve exhaust flow, engine breathing, throttle response, sound and overall performance, the package replaces several restrictive factory components with high-performance Fabspeed alternatives engineered to work together as a complete system.

What This Product Does:
The Fabspeed Performance Package is designed to improve the way the GT3's naturally aspirated flat-six engine takes in air and expels exhaust gases.

Reducing restrictions on both the intake and exhaust sides allows the engine to breathe more efficiently.

The package is designed to provide:

• Increased horsepower
• Increased torque
• Improved exhaust flow
• Improved exhaust scavenging
• Sharper throttle response
• Reduced exhaust-system weight
• More aggressive exhaust sound
• Stronger high-RPM engine character
• Improved intake sound
• More engaging driving characteristics

Because the components are designed as a package, the intake, exhaust and optional ECU calibration can complement one another rather than operating as isolated modifications.

What Does A Complete Performance Package Achieve:
Replacing a single exhaust component may reduce one restriction while leaving others unchanged.

A complete package addresses multiple areas simultaneously.

The Fabspeed package targets:
Intake airflow + exhaust manifolds + catalytic converters + mufflers + exhaust outlets + optional ECU calibration.

This coordinated approach is intended to improve overall airflow efficiency and provide a more substantial change in performance and sound.

Why Replacement Or Upgrade Matters:
A damaged exhaust system can affect more than sound.

Exhaust leaks or failed components can result in:

• Reduced engine performance
• Incorrect oxygen-sensor readings
• Engine-management faults
• Excessive noiseHot exhaust gases escaping into surrounding areas
  
• Heat damage to nearby components
• Poor exhaust alignment
• Unwanted rattles and vibration

Replacing damaged components restores the integrity of the exhaust system.

When upgrading to the Fabspeed Performance Package, replacement also provides the opportunity to reduce restriction, remove weight and increase the performance potential of the GT3.

Related reference numbers
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FSPOR9972GT3SPKGE

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Fabspeed Performance Exhaust Package WITH Performance Software.
The Fabspeed Performance Package is a comprehensive exhaust, intake and ECU tuning upgrade designed for the Porsche 911 997.2 GT3 RS.

Kit Contents:

• Center Mini Maxflo Mufflers
• Sport Performance Headers
• Sport Catalytic Converters
• Side Muffler Bypass Pipes
• Appropriate intake/filter solution for GT3 RS applications
• Deluxe Dual Style Exhaust TipsOptional
• Fabspeed XperTune Performance Software

Fits:

• Porsche 997 MKII GT3 RS 2010-2011

Developed to improve exhaust flow, engine breathing, throttle response, sound and overall performance, the package replaces several restrictive factory components with high-performance Fabspeed alternatives engineered to work together as a complete system.

What This Product Does:
The Fabspeed Performance Package is designed to improve the way the GT3's naturally aspirated flat-six engine takes in air and expels exhaust gases.

Reducing restrictions on both the intake and exhaust sides allows the engine to breathe more efficiently.

The package is designed to provide:

• Increased horsepower
• Increased torque
• Improved exhaust flow
• Improved exhaust scavenging
• Sharper throttle response
• Reduced exhaust-system weight
• More aggressive exhaust sound
• Stronger high-RPM engine character
• Improved intake sound
• More engaging driving characteristics

Because the components are designed as a package, the intake, exhaust and optional ECU calibration can complement one another rather than operating as isolated modifications.

What Does A Complete Performance Package Achieve:
Replacing a single exhaust component may reduce one restriction while leaving others unchanged.

A complete package addresses multiple areas simultaneously.

The Fabspeed package targets:
Intake airflow + exhaust manifolds + catalytic converters + mufflers + exhaust outlets + optional ECU calibration.

This coordinated approach is intended to improve overall airflow efficiency and provide a more substantial change in performance and sound.

Why Replacement Or Upgrade Matters:
A damaged exhaust system can affect more than sound.

Exhaust leaks or failed components can result in:

• Reduced engine performance
• Incorrect oxygen-sensor readings
• Engine-management faults
• Excessive noiseHot exhaust gases escaping into surrounding areas
  
• Heat damage to nearby components
• Poor exhaust alignment
• Unwanted rattles and vibration

Replacing damaged components restores the integrity of the exhaust system.

When upgrading to the Fabspeed Performance Package, replacement also provides the opportunity to reduce restriction, remove weight and increase the performance potential of the GT3 RS.

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FSPOR9972GT3RSPKGE

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Fabspeed Porsche Deluxe Quad Style Tips.
The Fabspeed Deluxe Quad Style Exhaust Tips are a premium exterior and exhaust styling upgrade designed for the Porsche 997.2 Turbo and Turbo S from 2010–2012.

Fits:

Designed to replace the original factory exhaust outlets, these quad-style tips give the rear of the Porsche a more aggressive, performance-focused appearance while providing a high-quality finishing touch to the exhaust system.  

Manufactured from T304L stainless steel, the tips are available in Polished or Satin Black finishes, allowing owners to choose between a classic bright stainless appearance or a darker, more purposeful motorsport-inspired look.

What This Product Does:

Exhaust tips form the visible final outlets of the exhaust system.

Although they do not perform the same gas-treatment or silencing functions as catalytic converters and mufflers, they provide the finishing point through which exhaust gases exit at the rear of the vehicle.

The Fabspeed Deluxe Quad Style Tips are primarily designed to:

• Replace the factory exhaust outlets
• Provide a sportier quad-tip appearance
• Improve the visual finish of the rear bumper area
• Give the Porsche a more aggressive performance look
• Provide durable stainless-steel exhaust outlets
• Replace scratched, corroded or damaged original tips
• Complement Fabspeed and other compatible performance exhaust upgrades

Symptoms Of Wear Or Failure:
Exhaust tips are relatively simple components, but years of heat exposure and road use can eventually affect their condition.

Common signs of deterioration include:

• Surface corrosion
• Heavy discoloration
• Persistent staining
• Scratches
• Dents
• Cracks
• Bent outlets
• Damaged mounting points
• Loose exhaust tips
• Excessive movement
• Poor alignment
• Peeling or damaged finish
• Heavy carbon and soot deposits
• Tips sitting unevenly within the bumper openings

Cosmetic deterioration does not necessarily affect exhaust-system performance, but physical damage or loose mounting should be corrected.

Why Replacement Matters:
Unlike a catalytic converter, muffler or exhaust pipe, a worn exhaust tip will not normally cause a major loss of engine performance.

Replacement matters primarily for appearance, fitment and physical condition.

Replacing worn or damaged tips can:

• Restore the rear appearance of the vehicle
• Remove heavily scratched or corroded outlets
• Correct bent or damaged tips
• Restore proper exhaust outlet alignment
• Eliminate rattling from damaged or loose tips
• Provide a more aggressive quad-tip appearance
• Complement other exhaust upgrades
• Refresh the appearance of an ageing Porsche

For a well-maintained performance car, details such as exhaust outlets can make a substantial difference to the overall presentation of the vehicle.

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FSPOR9972TQDT

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Fabspeed Race Headers.
The Fabspeed Porsche 997.2 Carrera Race Headers are high-performance, catless exhaust headers developed for Porsche 997.2 Carrera models from 2009–2012. Designed primarily for track-oriented vehicles, they replace the restrictive factory header and catalytic-converter assemblies with a freer-flowing stainless-steel exhaust system.

Fits:

• Porsche 997 MKII Carrera C2 3.6L 2009-12
• Porsche 997 MKII Carrera C4 3.6L 2009-12
• Porsche 997 MKII Carrera C2S 3.8L 2009-12
• Porsche 997 MKII Carrera C4S 3.8L 2009-12  
  
  

By removing the factory catalytic converters and improving exhaust-gas flow from the cylinder heads, the Race Headers are designed to reduce exhaust restriction, improve scavenging and allow the naturally aspirated flat-six engine to breathe more efficiently. 

What This Product Does: 

Exhaust headers collect the gases leaving each engine cylinder and direct them into the remainder of the exhaust system.

The design and flow characteristics of the headers can have a significant effect on how efficiently a naturally aspirated engine expels exhaust gases.

The Fabspeed Race Headers replace the factory header and catalytic-converter assemblies with a performance-oriented catless design intended to reduce restriction.

Their purpose is to provide:

• Increased exhaust flow
• Improved exhaust scavenging
• Reduced backpressure
• Increased horsepower and torque
• Improved engine response
• Stronger performance through the rev range
• Reduced exhaust-system weight
• Increased exhaust volume
• A more aggressive flat-six exhaust note

When Might Race Headers Be Worth Considering:
Unlike standard replacement headers, these components are primarily a performance modification.

They may be considered when:

• Building a track-focused Porsche 997.2 Carrera
• Maximum exhaust flow is desired
• Increased horsepower and torque are required
• A louder, more aggressive exhaust note is wanted
• Reducing exhaust-system weight is important
• Existing factory headers are damaged or deteriorated
• A complete performance exhaust system is being installed

For a road car, legal and emissions requirements must be considered before choosing a catless exhaust configuration.

Why Replacement Or Upgrading Matters:
A damaged or leaking exhaust header can allow extremely hot exhaust gases to escape before they reach the remainder of the exhaust system.

This can cause:

• Excessive exhaust noise
• Soot deposits
• Exhaust fumes
• Reduced exhaust-system efficiency
• Heat damage to nearby components
• Poor sealing between exhaust components

Replacing damaged components restores the integrity of the exhaust system.

When upgrading to Fabspeed Race Headers on a suitable track vehicle, the replacement also provides the opportunity to reduce exhaust restriction, improve flow and increase performance.

Fabspeed RENNKRAFT Modular Headers With HJS Catalytic Converters.

The Fabspeed RENNKRAFT Modular Headers with HJS Catalytic Converters are a high-performance exhaust manifold and catalyst upgrade developed for the Porsche 911 997.2 Carrera.

Fits:

• Porsche 997 MKII Carrera C2 3.6L 2009-12
• Porsche 997 MKII Carrera C4 3.6L 2009-12  

Designed to replace the factory header and catalytic-converter assemblies, the system combines freer-flowing tubular headers with German-made HJS HD tri-metallic 200-cell high-flow catalytic converters. The objective is to improve exhaust scavenging, reduce restriction and enhance engine response while retaining catalytic exhaust-gas treatment.

Fabspeed's patented RENNKRAFT modular design uses quick-release V-band connections between the headers and catalyst sections. This allows the HJS sport catalysts to be removed independently if servicing is required and enables compatible QUICKTRACK cat-bypass sections to be installed for appropriate track-only competition use.

The headers are manufactured from CNC mandrel-bent T304L stainless steel and use high-velocity merge collectors designed to improve exhaust-gas scavenging. Fabspeed states performance gains of approximately 25 hp and 20 lb-ft of torque on its development application, although actual results will vary according to vehicle condition, specification, fuel, exhaust configuration and operating conditions.

What This Product Does:

• Replaces the original exhaust manifolds and catalytic-converter sections.
• Improves the path for exhaust gases leaving the cylinder heads.
• Uses performance-oriented merge collectors to improve exhaust scavenging.
• Reduces restriction compared with the standard exhaust arrangement.
• Uses HJS 200-cell high-flow catalysts for improved gas flow.
• Helps improve throttle response and engine breathing.
• Can support increased horsepower and torque.
• Produces a sportier and more defined exhaust note.
• Enhances off-throttle burbles and higher-frequency exhaust tones.
• Retains catalytic exhaust-gas treatment when the HJS sport cats are fitted.
• Provides individually replaceable catalyst sections.
• Uses V-band connections for easier servicing and configuration changes.
• Allows compatible track-only bypass sections to be fitted without replacing the complete header assembly.
• Works with exhaust systems designed to connect to the factory-style Porsche header location.

Fabspeed states that the HJS catalyst configuration flows approximately 90–93% of an equivalent straight pipe, providing high exhaust-flow capacity while retaining a catalytic substrate.

Symptoms Of Wear Or Failure:
The original exhaust system is exposed to continuous heat cycles, vibration, moisture and corrosive exhaust gases. Over time, the manifolds, joints and catalytic converters can deteriorate.

Possible symptoms include:

• Exhaust ticking or tapping noises, especially when cold.
• Exhaust leaks around header flanges or joints.
• Soot deposits around leaking connections.
• Increased exhaust noise.
• Exhaust fumes or unusual smells around the rear of the vehicle.
• Loss of engine performance.
• Poor throttle response.
• Engine feeling restricted at higher RPM.
• Increased fuel consumption.
• Check engine warning light.
• Catalyst-efficiency fault codes.
• Rattling from inside a catalytic converter.
• Metallic noises caused by a loose catalyst substrate.
• Excessive heat around one catalytic converter.
• Failed emissions testing.
• Cracked or damaged exhaust manifolds.
• Corroded exhaust hardware or flanges.
• Damaged catalyst substrate caused by overheating or misfires.

A partially restricted catalytic converter may cause relatively normal operation at low engine speeds but increasingly restrict the engine as airflow demand rises.

Why Replacement Matters:
The exhaust headers and catalytic converters are positioned directly in the path of exhaust gases leaving the engine.

If a manifold develops a leak, exhaust gases can escape before reaching the remainder of the exhaust system. This can affect noise, emissions and engine-management readings.

If a catalytic converter becomes internally damaged or restricted, exhaust backpressure can increase. The engine then has to work harder to push exhaust gases out of the cylinders, potentially reducing performance.

Replacing worn or restrictive components can help restore:

• Efficient exhaust flow.
• Strong throttle response.
• Consistent engine performance.
• Proper catalytic-converter operation.
• Reliable exhaust sealing.
• Correct exhaust sound.
• Reduced unwanted exhaust leakage.
• More effective engine breathing.

A performance header and sport-cat system can also reduce restriction beyond the level offered by the original components.

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FSPOR9972MHSC

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Fabspeed Rennsport Muffler. 

The ULTIMATE OEM style high performance replacement muffler for your GT3

FEATURES:
•    Fits all Porsche 997.1 GT3 and 997.2 GT3 / GT3 RS vehicles 2007-2008 and 2010 to 2011 worldwide
•   Constructed from CNC cut T304L stainless steel
•   Designed from 3D scans of the OEM muffler so we can achieve perfect bolt-on fitment
•   Will not break or crack like OEM GT3 mufflers do
•   Incorporates our signature cast X-pipe for superior flow and exhaust scavenging- versus any and all other brands
•   Paired with our Side Muffler Bypass Pipes this muffler adds +27 ft/lbs of TQ and +16 WHP or +18 HP at the crank!
•   3 different tip options available- Carbon Fiber, TITANIUM, Stainless steel polished, brushed or black coated.
•   Completely retains PSE valved exhaust functionality
•   No Check Engine Light guaranteed
•   This cat-back system is emissions legal in all 50 states, CARB approved exempt and emissions legal in the rest of the world
•   Built in house at Fabspeed Motorsport USA in Fort Washington, PA
•   Simple bolt-on installation, no cutting or welding required
•   All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

As many GT3 owners know, the OEM mufflers are prone to cracking, breaking and blowing out, particularly the titanium mufflers on GT3RS cars. Fabspeed Motorsport Engineers design a GT3 primary muffler replacement that not only fixed that issue but also greatly improved on the OEM design in multiple measurable ways. Using our 30+ years of air and water-cooled experience, we took the valve open tubing to 2.75in / 70mm which is the optimal diameter for GT3 engines to have low restriction but maintain high velocity and high RPM GT3 pitch for the signature GT3 CUP car sound. Then, we implemented our signature investment cast 70mm 2.75" X-Pipe for optimal exhaust scavenging and maximum volumetric efficiency. The X merges the two cylinder banks without creating any restriction in exhaust flow. To maintain the factory muffler’s exhaust note and lack of drone, we mimicked Porsche’s 7 chamber design. This makes for a completely drone free muffler, even when running cat-less race headers! Using GT3 headers with cats or Fabspeed headers with HJS German EPA approved catalytic converters along with Fabspeed GT3 Side Muffler Muffler Bypass Pipes for the ultimate emissions compliant lightweight GT3 exhaust. Fabspeed's GT3 center muffler is guaranteed to NEVER BREAK or fail- and OUTPERFORM any other aftermarket GT3 center muffler. 100% made in house at Fabspeed.
 
SOUND:
This muffler will have a very similar tone to the OEM muffler, however, it will be a bit louder with PSE turned on. It will also sound a bit smoother and higher pitched thanks to our signature X-pipe.

POWER:
On our 997.1/ 997.2 GT3 and GT3RS test car, paired with our Side Muffler Muffler Bypass Pipes, the Rennsport Muffler picked up an impressive 27 ft/lbs of TQ down low at 3,200 RPM. From 2,900 RPM all the way to 5,700 RPM it picks up =12 horsepower or more, and peak power at the wheels is up from 446 to 454! That’s a gain of over 12 HP at the crank- from simply swapping out the fragile restrictive OEM Porsche 997GT3 to the very latest GT3 RS Titanium OEM factory mufflers. BEST ADVICE- but and install a Fabspeed GT3 center muffler and SAVE you fragile OEM GT3 muffler for Concours shows and restoration. All GT3 OEM mufflers BREAK & EXPLODE when driven long and hard enough.

NOTE:
•   Requires OEM gaskets and hardware to be reused
•   If they are not available here are the necessary part numbers. 
•     2x Muffler band straps (99711111970)
•     2x Bolt for muffler band strap (90006736201)
•     2x Each Side Muffler to Center Muffler Gaskets (99711156390, 99711156190)  

Please note: This is a special-order item manufactured to order. In some cases, please allow 4 – 5 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.

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FSPOR9972GT3RSM

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Fabspeed Side Muffler Bypass Pipes.

When looking to save a lot of weight and give your 997.2 Carrera an aggressive and race like sound, the side muffler bypass pipes are your ticket to accomplishing that goal. Replaces the heavy and restrictive factory side/secondary mufflers for increased exhaust flow and weight savings.

SOUND: These Side Muffler Bypass Pipes will give you a very significant increase in volume and really bring out the character of the flat 6 engine.

POWER: Removing the factory side mufflers really opens up the exhaust and allows the engine to breath much better. We saw an increase of 15 whp and 13 ft/lbs of tq at 5700 RPM.

FEATURES:

• Fits all Porsche 997.2 Carrera Vehicles 2009-2011 (Carrera GTS vehicles require Fabspeed's Deluxe Quad Style Tips)
• Improves power by 15 whp and 13 ft-lbs of torque at 5700 RPM
• Compatible with factory/OEM outlet tips (on non-GTS vehicles) or Fabspeed's Deluxe Quad Style Tip
• Constructed from CNC mandrel-bent T304L stainless steel
• Improves exhaust note and sound lever by about 9 decibels
• Saves 31 lbs from the rear of the vehicle
• Backed by the Fabspeed Lifetime Warranty

Fabspeed Sport Catalytic Converters.
The Fabspeed Sport Catalytic Converters are high-performance replacement catalytic converters developed for the Porsche 997.2 Turbo and Turbo S from 2010–2012.

Fits:

Designed to replace the restrictive factory catalytic-converter section, these Sport Cats use German HJS 200-cell catalytic converters combined with high-quality T304L stainless-steel pipework. The result is a freer-flowing exhaust path designed to improve power, throttle response and exhaust sound while retaining catalytic-converter functionality.

What This Product Does:

Catalytic converters form an important part of the vehicle's exhaust and emissions-control system.

Exhaust gases leaving the turbochargers pass through the catalytic converters before travelling through the remainder of the exhaust system. The catalyst promotes chemical reactions that convert harmful exhaust pollutants into less harmful gases before they leave the exhaust.

Performance catalytic converters perform the same fundamental role but use a less restrictive internal structure to improve exhaust flow.

The Fabspeed Sport Cats are designed to provide:

• Increased exhaust flow
• Reduced exhaust restriction
• Improved power
• Improved torque
• Sharper throttle response
• Increased performance potential
• More noticeable flat-six exhaust sound
• Reduced exhaust-system weight
• Continued catalytic exhaust-gas treatment

Symptoms Of Wear Or Failure:
Catalytic converters operate under extremely high temperatures and can deteriorate through age, mileage, contamination or engine-related faults.

Common symptoms can include:

• Check-engine warning light
• Catalyst-efficiency fault codes
• Reduced engine performance
• Poor throttle response
• Restricted exhaust flow
• Unusual rattling from underneath the vehicle
• Excessive exhaust heat
• Sulphur-like or unusual exhaust smell
• Poor acceleration
• Increased fuel consumption
• Failed emissions testing
• Visible damage to the catalytic converter
• Abnormal exhaust noise

A failed catalyst should be properly diagnosed before replacement.

Why Replacement Matters:
A damaged, contaminated or internally collapsed catalytic converter can restrict exhaust flow and interfere with engine performance.

Possible consequences include:

• Reduced power
• Poor acceleration
• Increased exhaust backpressure
• Excessive exhaust heat
• Engine-management warning lights
• Emissions faults
• Increased fuel consumption
• Further damage to exhaust components

Replacing a failed converter restores the intended exhaust path and catalytic function.

When upgrading to Fabspeed Sport Catalytic Converters, replacement can additionally provide reduced exhaust restriction, improved throttle response, increased performance potential and a sportier exhaust sound.

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FSPOR9972TSC

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Fabspeed Sport Headers.

The Fabspeed Porsche 911 GT3 Cup Sport Headers are a high-performance replacement for the restrictive factory exhaust headers fitted to 997 and 991.1-generation Porsche 911 GT3 Cup race cars from 2007–2016.

Fits:

• Porsche 997 MK1 GT3 CUP 2007-09
• Porsche 911 (997) GT3 CUP 2010
• Porsche 991 GT3 Cup 2016

Designed specifically for competition-focused GT3 Cup applications, the system improves exhaust gas flow and scavenging to help the naturally aspirated flat-six engine breathe more efficiently throughout the rev range. The result is improved throttle response and the potential for increased power and torque.

Each header assembly incorporates German-made 200-cell HJS tri-metallic high-flow sport catalytic converters. These performance catalysts are designed to offer substantially less exhaust restriction than conventional catalysts while retaining catalytic treatment of the exhaust gases.

The headers are manufactured from high-quality 14–16 gauge stainless steel using CNC mandrel-bent tubing and feature high-velocity 3-into-1 pyramidal investment-cast merge collectors. This collector design is intended to improve exhaust scavenging as the individual cylinder exhaust pulses combine.

Fabspeed lists gains of up to 22 HP and 37 units of torque for this product, although actual results depend on the vehicle, engine specification, environmental conditions and accompanying modifications. The manufacturer also lists a reduction in weight compared with the factory arrangement.

What This Product Does:
The exhaust headers collect exhaust gases leaving each cylinder and direct them towards the remainder of the exhaust system.

On a high-revving naturally aspirated race engine such as the GT3 Cup flat-six, header design has a significant effect on the speed and efficiency with which exhaust gases leave the combustion chambers.

The Fabspeed Sport Headers are designed to:

• Reduce restriction compared with the factory header arrangement.
• Improve exhaust gas velocity.
• Promote more effective cylinder scavenging.
• Reduce exhaust backpressure.
• Allow the engine to expel combustion gases more efficiently.
• Improve throttle response.
• Support increased horsepower and torque.
• Maintain high exhaust flow at elevated engine speeds.
• Improve performance across the usable RPM range.
• Provide high-flow catalytic conversion through the HJS sport catalysts.

Symptoms Of Wear Or Failure:
Exhaust headers operate in an extremely demanding environment and are exposed to intense heat, vibration and repeated thermal cycling.

Possible symptoms of deteriorated factory or aftermarket headers include:

• Ticking or tapping noises from the exhaust area.
• Exhaust noise becoming louder than normal.
• Exhaust gases escaping around the cylinder-head flange.
• Soot deposits around header joints or welds.
• Cracks in the header tubing.
• Cracked or damaged welds.
• Distorted exhaust flanges.
• Loose header fasteners.
• Damaged exhaust gaskets.
• Rattling noises from the catalytic converters.
• Metallic noises from loose catalyst material.
• Reduced engine performance.
• Slower throttle response.
• Increased exhaust backpressure.
• Engine-management warning lights.
• Catalyst-efficiency fault codes.
• Unusual exhaust smells.
• Excessive heat around surrounding components.

Race cars should be inspected regularly because repeated high-temperature track operation can accelerate fatigue of exhaust components.

Why Replacement / Upgrading Matters:
Efficient exhaust flow is essential to extracting maximum performance from a GT3 Cup engine.

A restrictive, damaged or leaking exhaust header can interfere with exhaust scavenging and reduce engine efficiency.

Replacing worn factory components or upgrading to the Fabspeed Sport Headers can help restore or improve:

• Exhaust gas flow.
• Cylinder scavenging.
• Throttle response.
• High-RPM performance.
• Engine breathing.
• Power and torque potential.
• Exhaust-system sealing.
• Competition reliability.

For a race vehicle, consistent performance is as important as peak output. Exhaust leaks or deteriorating components can become progressively worse under sustained track temperatures.

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

FSPOR997CUPSHDR

The product you are viewing cross references to these numbers

Fabspeed Sport Headers.

The Fabspeed Sport Headers are a high-performance replacement for the factory exhaust manifolds on the 2011 Porsche 997.2 GT2 RS.

Fits:

• Porsche 997 MKII GT2 RS 2011-13

Designed to improve the flow of exhaust gases from the cylinder heads to the turbochargers, these headers provide a less restrictive exhaust path intended to improve engine response and turbocharger performance.

The system is manufactured from 14–16 gauge CNC mandrel-bent T304L stainless steel and incorporates high-velocity 3-into-1 merge collectors. These CAD-designed collectors bring the exhaust gases from each bank together efficiently before they reach the turbochargers, helping improve exhaust scavenging and minimise unnecessary turbulence.

Fabspeed designed the headers as a direct bolt-on replacement for the factory manifolds, making them suitable both as a performance upgrade and as a replacement for damaged or deteriorated original headers.

What This Product Does:
The exhaust headers collect combustion gases leaving the engine's cylinders and direct them towards the turbochargers.

On the twin-turbocharged GT2 RS, exhaust gas energy drives the turbine wheels that generate boost. Efficient exhaust flow before the turbochargers is therefore important for both engine breathing and turbo response.

The Fabspeed Sport Headers are designed to:

• Improve exhaust gas flow
• Reduce restriction before the turbochargers
• Improve exhaust scavenging
• Deliver exhaust gases more efficiently to the turbochargers
• Support faster turbo boost response
• Improve throttle response
• Support increased engine performance
• Replace ageing factory exhaust manifolds
• Provide durable stainless-steel construction
• Maintain smooth internal flow through mandrel-bent tubing

The high-velocity 3-into-1 merge collectors are designed to combine exhaust pulses smoothly and efficiently before the gases enter the turbochargers.

Symptoms Of Wear Or Failure:
Exhaust headers operate in an extremely demanding environment and are continually subjected to high temperatures, vibration and repeated thermal cycling.

Common signs of damaged or deteriorating headers include:

• Ticking or tapping noises, particularly during a cold start
• Blowing or hissing noises from the manifold area
• Black soot deposits around header joints
• Visible cracks in the manifold or welds
• Exhaust leaks around the cylinder-head flanges
• Warped or distorted mounting flanges
• Broken or heavily corroded studs and nuts
• Increased exhaust noise
• Exhaust fumes around the engine compartment
• Reduced throttle response
• Slower or inconsistent turbo response
• Loss of engine performance
• Increased heat around nearby engine components

Similar symptoms can also be caused by failed exhaust gaskets, loose fasteners or leaks elsewhere in the exhaust system, so the complete assembly should be inspected before replacement.

Why Replacement Matters:
A secure and leak-free exhaust route between the cylinder heads and turbochargers is particularly important on a high-performance turbocharged engine.

If a header cracks or develops a leaking flange, exhaust gases can escape before they reach the turbocharger. This reduces the amount of exhaust energy available to drive the turbine and may contribute to slower boost response and reduced performance.

Escaping gases can also expose surrounding components to excessive heat and produce unwanted exhaust noise.

Replacing damaged headers helps restore:

• A sealed exhaust path
• Efficient exhaust delivery to the turbochargers
• Consistent turbocharger response
• Correct exhaust gas flow
• Reduced exhaust leakage
• Improved reliability around the manifold area

For vehicles with serviceable factory headers, upgrading to the Fabspeed system provides a freer-flowing design intended to improve exhaust scavenging, throttle response and turbo boost response.

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

FSPOR9972GT2RSSHDR

The product you are viewing cross references to these numbers

Fabspeed Supersport X-Pipe (X-Pipe Only).
The Fabspeed Porsche 997.2 Turbo / Turbo S Supersport X-Pipe is a high-performance rear exhaust upgrade designed to replace the heavy and restrictive factory rear mufflers with a freer-flowing X-pipe configuration.

Fits:

Developed specifically for the Porsche 997.2 Turbo and Turbo S, the Supersport X-Pipe improves the route exhaust gases take through the rear of the vehicle, reducing restriction while delivering a stronger and more refined flat-six exhaust note.

Manufactured from 14–16 gauge CNC mandrel-bent T304L stainless steel, the system combines durability, corrosion resistance and efficient exhaust flow in a direct bolt-on package.

What This Product Does:
The factory rear mufflers are designed to keep exhaust noise within production-car requirements while maintaining refinement.

This inevitably introduces some restriction into the exhaust path.

The Fabspeed Supersport X-Pipe replaces the original rear mufflers with a freer-flowing crossover arrangement designed to improve exhaust-gas movement through the rear of the system.

The upgrade is designed to provide:

• Improved exhaust flow
• Reduced rear exhaust restriction
• Improved performance potential
• Stronger response throughout the RPM range
• Moderate increase in exhaust volume
• More refined performance exhaust tone
• Enhanced turbocharged flat-six character
• Reduced dependence on restrictive factory rear mufflers

Replaces The Factory Rear Mufflers:

• The key function of this X-pipe is to replace the original rear muffler assemblies.
• Factory mufflers contain internal chambers and sound-control structures that reduce exhaust volume but can also restrict gas flow.
• Replacing these sections with the Supersport X-Pipe creates a less restrictive route through the rear exhaust system.
• This makes the product primarily a performance and sound upgrade, although it can also replace deteriorated original rear muffler components where appropriate.

Enhanced Turbo Flat-Six Sound:
Fabspeed describes the Supersport X-Pipe as providing a moderate increase in exhaust volume together with a more refined flat-six tone than the original exhaust.

Drivers can expect:

• Increased exhaust presence
• More sporting flat-six tone
• Stronger sound during acceleration
• More pronounced character through the RPM range
• A more engaging turbocharged Porsche exhaust note

The exact sound level will depend on the rest of the exhaust system fitted to the vehicle.

Performance Benefits:
Fabspeed states that the Supersport X-Pipe is designed to improve power throughout the RPM range.

However, the current product listing shows the specific horsepower, torque and weight figures as TBD.

For this reason, exact numerical gains should not be assumed.

Actual performance will depend on factors including:

• Engine condition
• Turbocharger condition
• Existing exhaust configuration
• Catalytic converters
• ECU calibration
• Intake modifications
• Fuel quality
• Ambient conditions
• Vehicle specification

Why Upgrading Matters:
The original rear mufflers do not need to have failed before fitting the Supersport X-Pipe.

This product is primarily a performance and sound upgrade.

Reasons for upgrading include:

• Freer-flowing rear exhaust design
• Replaces restrictive factory rear mufflers
• Improved exhaust flow
• Improved performance potential
• Moderate increase in exhaust volume
• More refined flat-six exhaust tone
• T304L stainless-steel construction
• 14–16 gauge tubing
• CNC mandrel-bent construction
• Direct bolt-on installation
• No cutting or welding required
• Purpose-designed fitment for the 997.2 Turbo and Turbo S

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

FSPOR9972TXP

The product you are viewing cross references to these numbers

Fabspeed Supersport X-Pipe RACE Exhaust System.
The Fabspeed Supersport X-Pipe Exhaust System is a high-performance turbo-back exhaust upgrade developed for the Porsche 997.2 Turbo and Turbo S from 2010–2012.

Fits:

Designed to replace the heavy and restrictive factory rear mufflers and catalytic-converter section, the system improves exhaust-gas flow while producing a significantly stronger and more engaging Porsche flat-six exhaust note.  

What This Product Does:

The exhaust system carries hot combustion gases away from the turbochargers and through the rear of the vehicle.

On a turbocharged engine, reducing unnecessary restriction after the turbochargers can improve exhaust flow and help the complete engine and turbo system operate more efficiently.

The Fabspeed Supersport X-Pipe replaces restrictive factory exhaust components with a freer-flowing performance design.

Its purpose is to provide:

• Improved exhaust-gas flow
• Reduced exhaust restriction
• Improved power potential
• Stronger performance throughout the RPM range
• More noticeable turbo spool sound
• A deeper and sportier flat-six exhaust note
• Reduced exhaust-system weight
• More aggressive rear styling
• Improved driving character

When Might This Exhaust Upgrade Be Worth Considering:
The Fabspeed Supersport X-Pipe is primarily a performance upgrade, rather than a component that requires routine replacement.

It may be considered when:

• More exhaust sound is desired
• Improved turbo sound is wanted
• The factory exhaust feels too restrictive
• A freer-flowing performance exhaust is required
• Increased performance potential is desired
• Reduced exhaust-system weight is beneficial
• A more aggressive rear appearance is wanted
• The original mufflers or catalytic converters are damaged
• The vehicle is being prepared for further performance upgrades

Why Replacement Matters:
A damaged or leaking exhaust system should not be ignored.

Exhaust leaks can allow extremely hot gases to escape before reaching the intended outlet.

Depending on the location and severity of the fault, this may cause:

• Excessive exhaust noise
• Exhaust fumesSoot deposits
  
• Heat damage to surrounding components
• Reduced exhaust-system efficiency
• Incorrect oxygen-sensor readings
• Engine-management faults
• Poor exhaust sealing

Replacing deteriorated components restores the integrity of the exhaust system.

For owners choosing the Fabspeed Supersport system as an upgrade, replacement also provides an opportunity to improve exhaust flow, reduce weight and significantly enhance the sound of the 997.2 Turbo or Turbo S.

Fabspeed Supersport X-Pipe STREET Exhaust System.
The Fabspeed Supersport X-Pipe Exhaust System is a high-performance turbo-back exhaust upgrade developed for the Porsche 997.2 Turbo and Turbo S from 2010–2012.

Fits:

Designed to replace the heavy and restrictive factory rear mufflers and catalytic-converter section, the system improves exhaust-gas flow while producing a significantly stronger and more engaging Porsche flat-six exhaust note.  

What This Product Does:

The exhaust system carries hot combustion gases away from the turbochargers and through the rear of the vehicle.

On a turbocharged engine, reducing unnecessary restriction after the turbochargers can improve exhaust flow and help the complete engine and turbo system operate more efficiently.

The Fabspeed Supersport X-Pipe replaces restrictive factory exhaust components with a freer-flowing performance design.

Its purpose is to provide:

• Improved exhaust-gas flow
• Reduced exhaust restriction
• Improved power potential
• Stronger performance throughout the RPM range
• More noticeable turbo spool sound
• A deeper and sportier flat-six exhaust note
• Reduced exhaust-system weight
• More aggressive rear styling
• Improved driving character

When Might This Exhaust Upgrade Be Worth Considering:
The Fabspeed Supersport X-Pipe is primarily a performance upgrade, rather than a component that requires routine replacement.

It may be considered when:

• More exhaust sound is desired
• Improved turbo sound is wanted
• The factory exhaust feels too restrictive
• A freer-flowing performance exhaust is required
• Increased performance potential is desired
• Reduced exhaust-system weight is beneficial
• A more aggressive rear appearance is wanted
• The original mufflers or catalytic converters are damaged
• The vehicle is being prepared for further performance upgrades

Why Replacement Matters:
A damaged or leaking exhaust system should not be ignored.

Exhaust leaks can allow extremely hot gases to escape before reaching the intended outlet.

Depending on the location and severity of the fault, this may cause:

• Excessive exhaust noise
• Exhaust fumesSoot deposits
  
• Heat damage to surrounding components
• Reduced exhaust-system efficiency
• Incorrect oxygen-sensor readings
• Engine-management faults
• Poor exhaust sealing

Replacing deteriorated components restores the integrity of the exhaust system.

For owners choosing the Fabspeed Supersport system as an upgrade, replacement also provides an opportunity to improve exhaust flow, reduce weight and significantly enhance the sound of the 997.2 Turbo or Turbo S.

Fabspeed XperTune Performance Software ECU Upgrade.
The Fabspeed XperTune Performance Software is an ECU performance upgrade developed for the Porsche 997.2 Carrera and Carrera S (2009–2012). Designed to optimise the factory engine calibration, the software improves horsepower, torque, throttle response and overall driving characteristics while retaining everyday drivability.

Fits:

• Porsche 997 MKII Carrera C2 3.6L 2009-12
• Porsche 997 MKII Carrera C4 3.6L 2009-12
• Porsche 997 MKII Carrera C2S 3.8L 2009-12
• Porsche 997 MKII Carrera C4S 3.8L 2009-12  

Rather than requiring the ECU to be removed and sent away for bench flashing, the XperTune system uses an included handheld tuning device that connects to the vehicle through its OBD-II diagnostic port. The handheld is also connected to a Windows PC during the tuning process, allowing the original vehicle data to be read and a custom Fabspeed calibration to be loaded onto the car.

What This Product Does:

The XperTune software changes the calibration within the vehicle's engine control unit to optimise engine performance.

The factory ECU contains calibration data that determines how the engine responds under different operating conditions. Performance software modifies relevant parameters to make better use of the engine's capabilities.

The upgrade is designed to provide:

• Increased horsepower
• Increased torque
• Improved throttle response
• Sharper engine response
• Improved acceleration
• More responsive driving characteristics
• Calibration tailored to the vehicle's configuration
• Better integration with compatible performance modifications

The objective is not simply to increase peak output, but to improve the way the engine responds throughout normal and performance driving.

How Does The XperTune System Work?
One of the main advantages of the XperTune package is that the ECU does not normally need to be physically removed and mailed away for tuning.

The included handheld device communicates with the vehicle through the OBD-II port.

The tuning process involves:

• Reading the vehicle's original ECU data using the handheld tuner.
• Connecting the handheld device to a compatible Windows computer.
• Sending the original vehicle data and relevant vehicle information to Fabspeed.
• Fabspeed creates a calibration for the vehicle's specific configuration.
• The custom tune file is returned electronically.
• The tune is transferred to the handheld device.
• The handheld is connected to the Porsche and the new calibration is written to the ECU.

This allows the tuning process to be completed without removing the ECU from the vehicle.

Why This Upgrade Matters:
The factory Porsche 997.2 Carrera already offers strong naturally aspirated performance, but ECU calibration provides an opportunity to optimise engine response without making major internal engine modifications.

The Fabspeed XperTune package can provide:

• Increased horsepower and torque
• Improved throttle response
• Sharper acceleration
• More responsive driving characteristics
• Calibration tailored to the vehicle
• Compatibility with suitable performance modifications
• Convenient OBD-II flashing
• No routine requirement to remove and ship the ECU
• Ability to restore the factory ECU calibration

For owners seeking additional performance while retaining the fundamental character of the naturally aspirated 997.2 Carrera, ECU software can be an effective part of a wider performance upgrade package.