Fabspeed Exhaust

Fabspeed Muffler Bypass Pipes L&R for Porsche 996 Carrera 4S (2002-2004)
Note: MUST REUSE FACTORY TIPS

Lighten the rear of the vehicle while adding a very aggressive Super cup style sound by replacing the heavy factory mufflers with straight-through pipes. This modification is used by many Rolex Grand Am race teams as well as PCA/POC and HPDE drivers. If you are looking for a more subtle and daily-drivable upgrade, we recommend checking out the Maxflo Performance Exhaust or the Supercup Exhaust System.

SOUND:

This is a very loud and aggressive exhaust system. If you're looking for maximum sound and performance, you've found it.

POWER:

This is the most free flowing side "muffler" solution you can get. On our dyno we saw 23 whp and 45 ft-lbs, and these are carried throughout the rpm range.

FEATURES:

• Fits all Porsche 996 Carrera 4S (2002-2004)
• Improves horsepower and torque by 23 whp and 45 ft-lbs
• Saves over 35 lbs from the rear of the vehicle
• Constructed from mandrel bent T304L stainless steel
• Simple DIY bolt-on installation, no cutting or welding required
• All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

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.

Fabspeed's Muffler Bypass Pipes for the Porsche 996 GT3 replace the heavy and restrictive factory muffler assembly saving 50 lbs from the rear of the car.

Lighten the rear of the vehicle while adding aggressive Supercup-style sound by replacing the heavy factory mufflers with straight-through tubes.

FEATURES:

• Fits all Porsche 996 GT3 vehicles (1999-2005)
• Increases horsepower and torque by 11 whp and 7 ft-lbs for improved throttle response
• Saves 50lbs from the rear of the vehicle
• Used by many Rolex Grand Am race teams as well as PCA/POC and HPDE drivers
• Simple DIY bolt-on installation; no cutting or welding required
• All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty

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.

Fabspeed 70mm Supersport X- Pipe Exhaust System.

The Fabspeed 70mm Supersport X-Pipe Exhaust System is a high-performance exhaust upgrade designed specifically for the 2001–2005 Porsche 996 GT2.

Fits:

• Porsche 996 GT2 2001-05

Engineered to improve exhaust gas flow and reduce restriction compared with the original exhaust system, the 70mm X-pipe configuration provides a freer-flowing route for gases leaving the twin-turbocharged engine. The system is designed to produce a stronger sports-car exhaust note while supporting improved throttle and turbocharger response.

The system incorporates 200-cell HJS Sport catalytic converters and is manufactured from 14–16 gauge CNC mandrel-bent T304L stainless steel for durability, corrosion resistance and efficient exhaust flow.

Fabspeed reports gains of approximately 29 wheel horsepower and 39 ft-lb of torque, although actual results will vary depending on vehicle condition, modifications, fuel and operating conditions.

What This Product Does:
The exhaust system carries combustion gases away from the turbochargers and engine while controlling exhaust flow, sound and emissions.

On a high-performance turbocharged engine such as the Porsche 996 GT2, reducing unnecessary restriction downstream of the turbochargers can help exhaust gases leave the system more efficiently.

The Fabspeed Supersport X-Pipe is designed to:

• Improve exhaust gas flow
• Reduce post-turbo exhaust restriction
• Support improved horsepower and torque
• Help reduce turbo lag
• Improve throttle and engine response
• Produce a sportier and more aggressive exhaust note
• Provide high-flow catalytic converter performance
• Improve long-term corrosion resistance

The X-pipe arrangement also combines exhaust flow from both sides of the engine, contributing to the system's distinctive sound and freer-flowing characteristics.

Symptoms Of Wear Or Failure:
The original exhaust system on a Porsche 996 GT2 is now potentially more than two decades old. Repeated heat cycles, vibration, condensation and road exposure can gradually deteriorate exhaust components.

Common symptoms include:

• Rust or corrosion on exhaust pipework
• Cracks around welds or joints
• Exhaust blowing, ticking or hissing noises
• Black soot deposits around leaking connections
• Loose or damaged exhaust clamps
• Rattling from silencers or catalytic converters
• Metallic noises from broken catalyst material
• Exhaust fumes around the rear of the vehicle
• Increased or irregular exhaust noise
• Reduced throttle response
• Increased turbo lag
• Noticeable loss of engine performance
• Check Engine Light associated with catalyst efficiency
• Restricted exhaust flow
• Sulphur-like or unusual exhaust smells
• Damaged or deformed exhaust pipework

A deteriorating catalytic converter can also break down internally. The substrate may become damaged, loose or partially blocked, potentially restricting exhaust flow.

Why Replacement Matters:
A damaged or restrictive exhaust can affect more than sound.

Exhaust leaks allow hot gases to escape before reaching the intended outlets and can expose nearby components to unnecessary heat. Cracked joints and corroded pipework can also worsen over time until sections of the exhaust become loose or fail.

A damaged or partially blocked catalytic converter can create significant exhaust restriction.

This is particularly relevant to the twin-turbocharged 996 GT2, where efficient exhaust flow downstream of the turbochargers contributes to responsive turbo operation. Excessive restriction can work against efficient gas evacuation and negatively affect engine response.

Replacing worn factory components helps restore:

• A secure and leak-free exhaust route
• Efficient exhaust gas evacuation
• Consistent turbocharger response
• Correct exhaust outlet operation
• Reduced risk of further corrosion-related failure

For owners upgrading a healthy standard exhaust, the Fabspeed system provides the additional benefits of increased flow, a stronger exhaust note and increased performance potential.

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

FSPOR996GT2SSX

The product you are viewing cross references to these numbers

Fabspeed Center Outlet Conversion Tips.
The Fabspeed Porsche 996/997.1 Carrera GT3 Center Outlet Conversion Tips are a specialist exhaust conversion designed to give compatible Porsche 911 Carrera models the distinctive centre-exit exhaust appearance associated with the GT3.

Fits:

• Porsche 996 GT3 MKI 1999-02
• Porsche 996 GT3 MKII 2003>>
• Porsche 997 MK1 GT3 / GT3 RS 2007-09  

Designed for vehicles fitted with a GT3-style rear bumper featuring a centre exhaust opening, the conversion uses extended exhaust outlets to redirect the tailpipes from the Carrera's conventional exhaust location towards the centre of the rear bumper.

The system retains the original side-mounted muffler layout while changing the location of the visible exhaust outlets, providing a motorsport-inspired appearance without requiring the exhaust mufflers themselves to be relocated.

Manufactured from 14–16 gauge T304 stainless steel, the conversion tips are designed for straightforward bolt-on installation without cutting or welding.

What This Product Does:

• The Fabspeed conversion tips change the location at which the Carrera's exhaust outlets appear at the rear of the vehicle.
• A standard Carrera uses exhaust outlets positioned towards the outer sections of the rear bumper.
• When a GT3-style bumper with a centre exhaust opening is installed, the standard exhaust outlet position no longer corresponds with the bumper design.
• The Fabspeed conversion system solves this by extending the exhaust outlets towards the centre of the vehicle.
• This allows the exhaust gases to exit through the central opening in the GT3-style rear bumper while retaining the side-mounted muffler arrangement.

GT3-Inspired Centre Exhaust Apperance:
The main purpose of this product is to provide the distinctive centre-exit exhaust configuration associated with Porsche's motorsport-inspired GT3 models.

The conversion provides:

• GT3-inspired centre exhaust styling
• Correct outlet positioning for a GT3-style rear bumper
• A cleaner rear-bumper conversion
• Motorsport-inspired appearance
• Retention of the Carrera side-muffler layout
• A purpose-designed alternative to custom exhaust fabrication

This is primarily an exhaust routing and styling conversion, rather than a conventional performance component intended to create substantial horsepower gains by itself.

Why Install A Centre Outlet Conversion:
This product is primarily intended for owners converting a Carrera to a GT3-style rear bumper and exhaust appearance.

Reasons for installing the system include:

• GT3-inspired styling
• Centre-exit exhaust conversion
• Correct exhaust positioning for a GT3-style bumper
• Avoiding custom exhaust fabrication
• Retaining the existing side-muffler layout
• Choice of exhaust-tip finishes
• Straightforward bolt-on installation

It provides a purpose-designed solution for completing the rear appearance of a GT3-style Carrera conversion.

Fabspeed Competition Link Pipe X-Pipe.
The Fabspeed Porsche 996 Carrera Competition Link Pipe / Cat Bypass X-Pipe is a performance exhaust component designed for closed-course competition and off-road applications. It replaces the factory catalytic-converter section with a freer-flowing X-pipe, reducing exhaust restriction and allowing the Porsche flat-six engine to breathe more efficiently at higher engine speeds.

Fits:

• Porsche 996 C2 3.6L 1999-2004
• Porsche 996 C4 3.6L 1999-2004 

Manufactured from mandrel-bent T304L stainless steel, the system is designed to improve mid- and high-RPM performance, sharpen throttle response, reduce rear-end weight and create a significantly more aggressive exhaust note.

Because this system eliminates the factory catalytic converters, it is intended strictly for closed-track and off-road use where legally permitted and should not be used on public roads where catalytic converters are required.

What This Product Does:
The standard Porsche 996 Carrera exhaust system uses catalytic converters to reduce harmful exhaust emissions.

For dedicated competition applications, the Fabspeed Cat Bypass X-Pipe replaces this catalytic-converter section with unrestricted exhaust tubing and an X-pipe crossover.

Removing the catalyst restriction allows exhaust gases to pass through the system more freely.

The system is designed to:

• Reduce exhaust backpressure
• Improve exhaust-gas flow
• Improve mid- and high-RPM performance
• Increase horsepower potential
• Increase torque
• Improve throttle response
• Reduce exhaust-system weight
• Produce a louder, more aggressive exhaust note
• Improve high-RPM engine breathing

Performance Benefits:
Fabspeed reports dyno-tested improvements of:

Horsepower: +33 WHP
Torque: +41 ft-lb
Weight Reduction: Approx. 25 lb

Fabspeed states that the system was developed to deliver its strongest gains towards the upper part of the rev range, with substantial improvements above approximately 3,500 rpm.

These are manufacturer-reported results from a particular test vehicle and are not guaranteed figures for every Porsche 996 Carrera.

Actual performance can vary according to engine condition, vehicle specification, existing modifications, ECU calibration, fuel, atmospheric conditions and testing method.

Why Upgrading Matters:
This component is primarily a competition performance upgrade, not a routine replacement for a failed factory catalytic converter.

For suitable closed-course vehicles, potential reasons for installation include:

• Reduced exhaust restriction
• Increased high-RPM exhaust flow
• Improved mid- and high-RPM performance
• Reduced rear-end weight
• Sharper throttle response
• More aggressive exhaust sound
• Simplified competition exhaust configuration

It can also form part of a broader competition exhaust package incorporating performance headers, lightweight mufflers and other track-oriented modifications.

Fabspeed Deluxe Quad-Style Tips - Short.
The Fabspeed Porsche 996 Carrera Deluxe Quad-Style Tips – Short are premium replacement exhaust outlets designed to give the rear of the Porsche 996 Carrera a more aggressive, performance-inspired quad-exit appearance.

Fits:

• Porsche 996 C2 3.4L 1999-2001
• Porsche 996 C4 3.4L 1999-2001

Replacing the original exhaust outlets, the Fabspeed tips provide a visual upgrade while retaining compatibility with the factory non-PSE mufflers or compatible Fabspeed exhaust systems.

Manufactured from mandrel-bent T304L stainless steel, they are designed to withstand the heat, moisture and environmental exposure experienced at the rear of the exhaust system.

Available in Polished or Satin Black finishes, these tips provide a straightforward way to personalise the rear appearance of an early Porsche 996 Carrera without replacing the complete exhaust system.

What This Product Does:
Exhaust tips form the visible final outlets of the vehicle's exhaust system.

Their primary role is to provide a correctly positioned and finished outlet for exhaust gases leaving the rear mufflers while contributing significantly to the appearance of the rear bumper.

The Fabspeed Deluxe Quad-Style Tips convert the visible exhaust outlets to a sportier quad-tip appearance.

They are designed to provide:

• A more aggressive rear appearance
• Quad-style exhaust outlets
• A premium stainless-steel finish
• Correct exhaust outlet routing
• Compatibility with suitable factory mufflers
• Compatibility with Fabspeed exhaust systems
• A bolt-on styling upgrade

Unlike headers, catalytic converters or performance mufflers, exhaust tips are primarily a styling and finishing component. They should not be treated as a major standalone horsepower upgrade.

Quad Style Appearance:

• The quad-outlet design creates a wider and more performance-oriented visual appearance at the rear of the Porsche 996 Carrera.
• This provides a useful styling upgrade for owners who want to change the appearance of the standard exhaust outlets without replacing the complete exhaust system.
• The available Polished and Satin Black finishes also allow the appearance to be matched to the vehicle's styling.

Why Upgrading Matters:
These tips are primarily an appearance upgrade, meaning the original exhaust outlets do not need to be worn or damaged before replacement.

Owners may choose them for:

• Quad-exit exhaust styling
• More aggressive rear appearance
• T304L stainless-steel construction
• Choice of polished or satin black finish
• Compatibility with factory non-PSE mufflers
• Compatibility with Fabspeed exhaust systems
• Straightforward bolt-on installation
• No cutting or welding required

They provide a way to change the visual character of the exhaust without committing to a complete exhaust-system replacement.

Fabspeed Deluxe X-50 Style Tips.

The Fabspeed Deluxe X-50 Style Exhaust Tips are premium replacement exhaust outlets designed for Porsche 996 Turbo models from 2000–2005.

Fits:

• Porsche 996 TURBO 2000-05

Inspired by the distinctive X50-style exhaust appearance, these tips provide a clean, performance-focused upgrade for the rear of the 996 Turbo. They are designed as bolt-on replacements and can be fitted to factory or compatible aftermarket exhaust systems.

Manufactured from high-quality 14–16 gauge T304 stainless steel, the tips are engineered to withstand exhaust heat, moisture and everyday road exposure while providing a durable, high-quality finish. Fabspeed also specifies simple DIY installation.

What This Product Does:
Exhaust tips form the visible final section of the exhaust system. They provide the finished outlet through which exhaust gases exit at the rear of the vehicle while also playing an important role in the appearance of the exhaust system.

The Fabspeed Deluxe X-50 Style Tips replace the original exhaust outlets with a more distinctive performance-inspired design.

Their main functions and benefits include:

• Providing a finished outlet for exhaust gases
• Upgrading the rear appearance of the Porsche 996 Turbo
• Replacing ageing, damaged or deteriorated original exhaust tips
• Providing durable stainless-steel construction
• Maintaining proper positioning of the exhaust outlets
• Allowing installation on factory or compatible aftermarket exhaust systems
• Creating an X50-inspired performance appearance

These exhaust tips are primarily an appearance and durability upgrade rather than a significant engine-performance modification.

Symptoms Of Wear Or Failure:
Exhaust tips are constantly exposed to high temperatures, condensation, moisture, exhaust deposits and road contamination. Over time, the original tips can deteriorate.

Common signs that replacement may be required include:

• Rust or corrosion
• Surface pitting
• Heavy staining or permanent discolouration
• Peeling or deterioration of the original finish
• Dents or impact damage
• Scratches that cannot be polished out
• Loose exhaust tips
• Rattling or vibration
• Cracked mounting points or welds
• Tips sitting unevenly or incorrectly aligned
• Excessive soot around the connection point
• Exhaust tips contacting the bumper or surrounding trim
• A tired appearance that cannot be restored through cleaning or polishing

Severe corrosion can eventually weaken the tip or its mounting area enough for the outlet to become loose.

Why Replacement Matters:

• Worn exhaust tips can affect both the appearance and security of the exhaust outlet.
• A loose or damaged tip may vibrate or rattle while driving and can move sufficiently to contact the rear bumper or surrounding trim. If corrosion progresses far enough, mounting areas can weaken and the tip may no longer remain securely attached.
• Replacing deteriorated tips helps restore the correct exhaust outlet positioning and gives the rear of the vehicle a cleaner, more finished appearance.
• Where the remainder of the exhaust system remains in good condition, replacing only the tips is also a practical way to refresh the exhaust without replacing silencers, catalytic converters or other major components.
• For owners seeking a more distinctive appearance, the Fabspeed X-50 Style Tips provide an easy bolt-on upgrade while retaining compatibility with factory and suitable aftermarket exhaust systems.

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

FSPOR996TX50TP

The product you are viewing cross references to these numbers

Fabspeed Link Comp X-Pipe.
The Fabspeed Porsche 996 GT3 Cat Bypass X-Pipe is a high-performance competition exhaust component designed to replace the factory catalytic converters with a freer-flowing X-pipe arrangement.

Fits:

• Porsche 996 GT3 MKI 1999-02
• Porsche 996 GT3 MKII 2003>>  

Developed for track and competition-focused Porsche 996 GT3 applications, the system removes the restrictive catalytic-converter section and provides a more direct route for exhaust gases leaving the engine.

By reducing exhaust restriction and allowing gases from both cylinder banks to merge through the X-pipe, the system is designed to improve exhaust flow, sharpen throttle response, reduce weight and produce a considerably more aggressive GT3 exhaust note.

What This Product Does:
The original catalytic converters form part of the vehicle's emissions-control system.

While catalysts treat exhaust gases, their internal substrates also create resistance to exhaust flow.

The Fabspeed Cat Bypass X-Pipe removes this catalytic restriction and replaces it with freer-flowing exhaust pipework.

The system is designed to:

• Remove the restrictive factory catalytic converters
• Increase exhaust-gas flow
• Reduce exhaust backpressure
• Improve engine breathing
• Improve throttle response
• Increase horsepower and torque potential
• Reduce exhaust-system weight
• Increase exhaust volume
• Produce a more aggressive motorsport-inspired sound

Because the catalytic converters are removed, this is fundamentally different from a Sport Cat system.

X-Pipe Design:
An X-pipe connects the exhaust streams from the two cylinder banks.

Rather than keeping both exhaust paths completely separate, the crossover allows pressure pulses from each bank to interact.

A properly designed X-pipe can help:

• Balance exhaust pulses
• Improve gas-flow transitions
• Reduce turbulence
• Improve exhaust scavenging
• Support high-RPM performance
• Create a smoother, more exotic exhaust tone

This is particularly suited to the naturally aspirated, high-revving flat-six engine used in the 996 GT3.

Maximum Exhaust Flow:
Removing the catalytic substrates eliminates one of the major restrictions in the exhaust system.

This creates a substantially more open exhaust route.

Potential benefits include:

• Reduced exhaust backpressure
• Faster exhaust evacuation
• Improved engine breathing
• Sharper throttle response
• Stronger high-RPM performance
• Increased performance potential

Actual performance depends on the complete vehicle configuration.

Why Upgrading Matters:
The factory catalytic converters do not need to have failed for this component to be installed.

The Cat Bypass X-Pipe is primarily a competition performance upgrade.

Reasons for upgrading include:

• Maximum exhaust-gas flow
• Elimination of catalytic-converter restriction
• Reduced exhaust backpressure
• Improved throttle response potential
• Increased horsepower and torque potential
• Reduced exhaust-system weight
• More aggressive GT3 exhaust sound
• Improved high-RPM exhaust character
• X-pipe crossover design
• Track-focused configuration

It is particularly suited to vehicles where performance and exhaust flow take priority over road-use emissions requirements.

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.

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

FSPOR996GT3CBX

The product you are viewing cross references to these numbers

Fabspeed Maxflo Performance Exhaust System.

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

FSPOR996GT3MAX

The product you are viewing cross references to these numbers

Fabspeed Muffler Bypass Pipes.
The Fabspeed Porsche 996 Carrera Muffler Bypass Pipes are a performance exhaust upgrade designed to replace the heavy factory rear side mufflers with lightweight, straight-through exhaust pipes.

Fits:

• Porsche 996 C2 3.6L 1999-2004
• Porsche 996 C4 3.6L 1999-2004 

Designed for drivers seeking maximum exhaust sound, reduced rear-end weight and improved exhaust flow, these bypass pipes remove the sound-deadening restriction of the original mufflers and create a much more aggressive, motorsport-inspired flat-six exhaust note.

Manufactured from mandrel-bent T304L stainless steel, the pipes provide a direct bolt-on installation without requiring cutting or welding.

What This Product Does:
The factory rear mufflers reduce exhaust noise by directing exhaust gases through internal chambers and sound-attenuating passages.

While this provides a quieter and more refined driving experience, the mufflers also add considerable weight and create some resistance to exhaust flow.

The Fabspeed Muffler Bypass Pipes replace these factory mufflers with much simpler straight-through pipework.

This is designed to:

• Reduce exhaust restriction
• Improve exhaust-gas flow
• Reduce rear-end weight
• Increase exhaust volume
• Produce a more aggressive flat-six sound
• Improve engine response
• Support increased horsepower and torque
• Create a motorsport-inspired exhaust character

Straight Through Exhaust Design:

• Rather than passing through a conventional silencer, exhaust gases travel through the bypass pipes with minimal sound attenuation.
• This creates a much more direct exhaust path.
• Reduced restriction can help the engine evacuate exhaust gases more efficiently, particularly when combined with other performance exhaust components.
• The trade-off is a substantial increase in exhaust volume.

Performance Benefits:
Fabspeed reports dyno-tested gains of:

Horsepower: +23 WHP
Torque: +45 ft-lb
Weight Reduction: Over 35 lb

Fabspeed states that the power and torque improvements are carried throughout the RPM range.

These figures are manufacturer-reported results from a particular test vehicle and should not be considered guaranteed output for every Porsche 996 Carrera.

Actual results can vary according to:

• Engine condition
• Vehicle specification
• Existing exhaust components
• Intake modifications
• ECU calibration
• Fuel quality
• Ambient conditions
• Dyno type and testing procedure

Why Upgrading Matters:
The Fabspeed Muffler Bypass Pipes are primarily a performance and sound upgrade, rather than a routine replacement part.

The original mufflers do not need to have failed before these pipes can be installed.

Reasons for upgrading can include:

• Maximum exhaust sound
• Reduced exhaust restriction
• Significant rear weight reduction
• Increased horsepower potential
• Increased torque potential
• More aggressive throttle response
• Motorsport-inspired exhaust character
• Simplified straight-through exhaust routing

They can be particularly attractive for track-focused Porsche 996 Carrera builds where weight reduction and exhaust character take priority over cabin refinement.

Fabspeed Muffler Bypass Pipes.

The Fabspeed Muffler Bypass Pipes are a performance-focused exhaust upgrade designed for compatible Porsche 996 Turbo, X50 and GT2 applications.

Fits:

• Porsche 996 TURBO 2000-05
• Porsche 996 GT2 2001-05  

These straight-through pipes replace the Fabspeed Maxflo rear mufflers, creating a much more direct exhaust path from the Fabspeed Sport Catalytic Converters to the exhaust tips. Removing the mufflers substantially increases exhaust volume and gives the 996 Turbo a raw, aggressive motorsport-inspired sound.

The system also removes a considerable amount of rear exhaust weight. Fabspeed states that this configuration saves approximately 50 lb compared with the standard 996 Turbo exhaust system.

These bypass pipes are specifically designed as part of the Fabspeed modular exhaust system. Existing Fabspeed Sport Catalytic Converters are required, and the pipes will not directly fit the original Porsche exhaust or other aftermarket 996 Turbo systems.

What This Product Does:
A conventional rear muffler reduces exhaust noise by forcing exhaust gases through internal chambers, perforated tubes or sound-absorbing structures.

The Fabspeed Muffler Bypass Pipes eliminate the rear mufflers and provide a much more direct path for exhaust gases to travel towards the tailpipes.

Their primary functions and benefits include:

• Eliminating the Fabspeed Maxflo rear mufflers
• Creating a freer and more direct exhaust route
• Producing a considerably louder and more aggressive exhaust note
• Reducing rear exhaust system weight
• Allowing reuse of compatible factory, aftermarket or Fabspeed exhaust tips
• Providing a motorsport-inspired exhaust character
• Allowing compatible Fabspeed systems to be converted between muffled and bypass configurations

Fabspeed specifically designed the system to be interchangeable, allowing owners with the required Fabspeed components to change between a muffler and muffler-bypass arrangement.

Symptoms Of Wear Or Failure:
Exhaust bypass pipes contain fewer internal components than conventional mufflers, but they are still exposed to extreme heat, vibration, moisture and road contamination.

Signs that the bypass pipes or their connections may require attention include:

• Cracks around welds or pipe joints
• Exhaust blowing or hissing sounds
• Black soot around leaking connections
• Loose clamps or mounting hardware
• Excessive movement or vibration
• Metallic rattling from loose mounting points
• Visible corrosion or surface deterioration
• Dents or impact damage to the pipework
• Exhaust tips becoming incorrectly aligned
• Exhaust fumes escaping from joints before the tailpipes
• Unusual changes in exhaust sound
• Pipes contacting surrounding bodywork or heat shields

If the vehicle is still fitted with its original mufflers, deterioration may instead appear as rattling internal components, corrosion, cracking, exhaust leaks or damage to the muffler casing.

Why Replacement / Upgrading Matters:

• A damaged exhaust pipe or leaking connection can allow hot exhaust gases to escape before reaching the intended outlets. This can create unwanted noise, soot deposits and additional heat around nearby components.
• Cracked or poorly supported exhaust components can also move excessively and place additional load on mounting brackets, joints and surrounding parts.
• Where the existing Fabspeed Maxflo system is in good condition, fitting the Muffler Bypass Pipes is primarily a performance-sound and weight-reduction upgrade rather than a necessary repair. The bypass configuration removes the rear mufflers and gives the 996 Turbo a significantly more aggressive exhaust character.
• For owners using their vehicle for performance driving or seeking a more dramatic exhaust note, the reduced restriction and considerable weight saving can make the bypass configuration particularly attractive.
• If replacing worn or damaged exhaust components, restoring secure, correctly aligned pipework also ensures that exhaust gases are directed safely to the rear of the vehicle.

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

FSPOR996TMB

The product you are viewing cross references to these numbers

Fabspeed RACE Muffler Bypass Exhaust System, Includes Catbypass.

The Fabspeed Muffler Bypass Exhaust System is a high-performance exhaust upgrade designed for the 2000–2005 Porsche 996 Turbo.

Fits:

• Porsche 996 TURBO 2000-05

Developed for drivers looking for maximum exhaust character and reduced restriction, the system replaces the restrictive factory muffler arrangement with a much freer-flowing bypass design. The result is a significantly louder, more aggressive exhaust note together with improved exhaust flow, sharper throttle response and reduced rear-end weight.

Fabspeed offers the system in two configurations. The Race configuration uses catalyst-bypass pipes for maximum flow. Fabspeed notes that emissions-related configurations may be restricted to closed-course or off-road use depending on local legislation, so applicable regulations should be checked before installation.

Manufactured from 14–16 gauge CNC mandrel-bent T304L stainless steel, the system is designed to provide excellent heat resistance, corrosion resistance and long-term durability. Fabspeed also states that the system removes approximately 45 lb (20 kg) from the rear of the vehicle compared with the factory arrangement.

What This Product Does:
The exhaust system carries combustion gases away from the turbochargers and engine. Factory mufflers are designed to control exhaust volume, but they also introduce resistance into the exhaust path.

The Fabspeed Muffler Bypass system removes much of this restriction by providing a more direct exhaust route.

Its key functions and benefits include:

• Reducing exhaust backpressure and restriction
• Improving exhaust gas flow
• Helping the turbocharged engine breathe more freely
• Improving throttle response
• Supporting increased horsepower and torque
• Producing a much louder and more aggressive exhaust note
• Reducing weight at the rear of the vehicle
• Replacing ageing factory exhaust components with stainless-steel alternatives

Fabspeed publishes gains of approximately 37 hp and 42 lb-ft of torque for this system, although actual results can vary depending on vehicle condition, modifications and configuration.

This is one of Fabspeed's more aggressive exhaust options and is particularly suited to owners prioritising performance and exhaust sound rather than factory-level refinement.

Symptoms Of Wear Or Failure:
Porsche 996 Turbo models are now more than two decades old, meaning original exhaust components may have experienced thousands of heat cycles along with moisture, road salt and vibration.

Common signs of exhaust deterioration include:

• Rust or corrosion on exhaust pipes or silencers
• Cracks around welds and joints
• Exhaust leaks
• Blowing, ticking or hissing noises
• Rattling from deteriorated muffler internals
• Loose exhaust components or mounting points
• Increased exhaust noise in unexpected areas
• Exhaust fumes around the rear of the vehicle
• Soot deposits around leaking joints
• Reduced engine performance
• Slower or less responsive turbo performance
• Increased exhaust restriction
• Check Engine Light associated with catalyst efficiency
• Metallic rattling from damaged catalytic converter material
• Sulphur-like or unusual exhaust smells
• Visible damage to exhaust pipework

A deteriorated or internally damaged catalytic converter can also restrict exhaust flow. This may contribute to reduced performance and increased exhaust temperatures.

Why Replacement / Upgrading Matters:

• A leaking, corroded or restricted exhaust system can affect both performance and reliability.
• On a turbocharged engine such as the Porsche 996 Turbo, efficient exhaust flow downstream of the turbochargers is particularly important. Excessive restriction can work against efficient gas evacuation and may negatively affect throttle response and overall performance.
• Exhaust leaks can also produce unwanted noise and allow hot exhaust gases to escape close to surrounding components. Severe corrosion can weaken pipework, joints and mounting points until components become loose or fail completely.
• A damaged or partially blocked catalytic converter can create additional exhaust restriction and potentially increase thermal stress within the exhaust system.
• Replacing deteriorated factory components with the Fabspeed Muffler Bypass system restores a secure exhaust path while substantially reducing restriction and weight. For owners seeking a performance-focused setup, it also provides a much more pronounced turbocharged exhaust sound.

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

FSPOR996TRMBE

The product you are viewing cross references to these numbers

Fabspeed RACE Supersport 70mm X-Pipe Exhaust System, Includes Catbypass.
The Fabspeed Supersport 70mm X-Pipe Exhaust System is a high-performance exhaust upgrade designed for the 2000–2005 Porsche 996 Turbo and Turbo S.

Fits:

Running from the turbocharger outlets through to the exhaust tips, the system replaces restrictive sections of the original exhaust with a freer-flowing 70mm X-pipe configuration. The design is intended to improve exhaust gas flow, reduce restriction and give the 996 Turbo a considerably more aggressive exhaust note.

The Race application configuration using catalyst-bypass pipes with oxygen-sensor locations matching the factory arrangement; this version is intended for off-road or track use only.

Constructed from 14–16 gauge CNC mandrel-bent T304L stainless steel, the system is designed for durability, corrosion resistance and smooth internal exhaust flow. Fabspeed states gains of approximately 32 wheel horsepower and 37 ft-lb of torque, depending on vehicle condition and configuration.

What This Product Does:
The exhaust system carries combustion gases away from the turbochargers and engine while controlling exhaust flow, noise and, where catalytic converters are fitted, emissions.

On a turbocharged engine, excessive exhaust restriction after the turbochargers can work against efficient gas evacuation. The Fabspeed 70mm system uses larger, smoother-flowing pipework and an X-pipe layout to reduce restriction and improve exhaust flow.

Potential benefits include:

• Improved exhaust gas flow
• Reduced post-turbo exhaust restriction
• Increased horsepower and torque
• Sharper engine response
• A deeper and more aggressive exhaust sound
• Reduced weight compared with the factory system
• Improved durability through stainless-steel construction

The Supersport system is positioned between Fabspeed's quieter Maxflo system and its louder Muffler Bypass system, providing a more aggressive exhaust character without being its most extreme exhaust option.

Symptoms Of Wear Or Failure:
The original exhaust system on a 996 Turbo is now potentially more than two decades old, and heat cycles, condensation, road salt and vibration can gradually deteriorate exhaust components.

Common symptoms that may indicate exhaust deterioration include:

• Rust or corrosion on exhaust pipes and silencers
• Cracks around welds, joints or mounting points
• Exhaust gas leaks
• A blowing, ticking or hissing sound
• Increased or unusual exhaust noise
• Rattling from loose internal components or heat shields
• Exhaust fumes around the rear of the vehicle
• Reduced engine performance or throttle response
• Increased turbo lag where exhaust restriction becomes excessive
• Visible damage or deformation to exhaust pipework
• Failed or deteriorating catalytic converters
• Check Engine Light associated with catalyst efficiency or oxygen-sensor faults
• Sulphur or unusual exhaust smells
• Restricted exhaust flow caused by a damaged or partially blocked catalytic converter

Catalytic converters can deteriorate internally with age and repeated heat cycling. A damaged catalyst substrate may break apart, rattle or restrict exhaust flow, potentially reducing performance.

Why Replacement / Upgrading Matters:

• A damaged or heavily deteriorated exhaust system can affect more than sound and appearance. Exhaust leaks can allow gases to escape before reaching the intended outlets, while damaged or restricted catalytic converters can interfere with exhaust flow and reduce engine performance.
• This is particularly important on a turbocharged Porsche 996, where efficient exhaust flow downstream of the turbochargers plays an important role in overall engine and turbocharger performance.
• Replacing an ageing or restrictive exhaust system can help restore secure, leak-free exhaust operation while improving flow and durability. For owners seeking a performance upgrade, the Fabspeed Supersport system also provides larger-diameter pipework and a freer-flowing X-pipe configuration designed to take greater advantage of the 996 Turbo's performance potential.
• The stainless-steel construction also offers improved resistance to corrosion compared with an ageing original exhaust, making the system suitable both as a replacement for deteriorated components and as a performance-oriented upgrade.

Key Features:

• Fits Porsche 996 Turbo and Turbo S models from 2000–2005
• 70mm Supersport X-pipe exhaust design
• Runs from the turbo outlets to the exhaust tips
• Race version available with catalyst-bypass pipes for off-road/track use 
• Claimed increase of approximately 32 whp and 37 ft-lb of torque
• 14–16 gauge CNC mandrel-bent T304L stainless-steel construction
• Designed to improve exhaust flow and sound
• Direct bolt-on installation
• More aggressive sound than Fabspeed's Maxflo system

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

FSPOR996TSSRX

The product you are viewing cross references to these numbers

Fabspeed Sport Cat X-Pipe.
The Fabspeed Porsche 996 GT3 Sport Cat X-Pipe is a high-performance catalytic converter and X-pipe upgrade designed to improve exhaust flow, throttle response, power and exhaust sound while retaining catalytic exhaust treatment.

Fits:

• Porsche 996 GT3 MKI 1999-02
• Porsche 996 GT3 MKII 2003>>  

Replacing the original catalytic-converter section, the system combines 200-cell HJS high-flow Sport Catalytic Converters with a specially designed stainless-steel cast X-pipe featuring a knife-edged internal design. The result is a less restrictive exhaust path that allows gases from the naturally aspirated GT3 flat-six to flow more efficiently through the exhaust system.

Manufactured using mandrel-bent T304L stainless steel, the system is designed as a direct bolt-on performance upgrade requiring no cutting or welding.

Fabspeed reports gains of up to 15 wheel horsepower, together with approximately 14 lb-ft of torque and a 12 lb weight reduction compared with the factory components. Actual results depend on the individual vehicle and testing conditions.

What This Product Does:
The catalytic converters sit within the exhaust system and process exhaust gases before they leave the vehicle.

At the same time, their internal construction creates some resistance to exhaust flow.

A performance Sport Cat system aims to maintain catalytic treatment while reducing unnecessary restriction compared with the original catalytic-converter arrangement.

The Fabspeed Sport Cat X-Pipe is designed to:

• Improve exhaust-gas flow
• Reduce exhaust restriction
• Improve throttle response
• Increase horsepower and torque potential
• Reduce exhaust-system weight
• Produce a more defined GT3 exhaust note
• Provide a mild increase in exhaust volume
• Retain catalytic exhaust treatment
• Improve exhaust flow between the two cylinder banks

Manufacturer Report Performance:
Fabspeed reports curve gains of up to approximately:

Power: +15 WHP
Torque: +14 lb-ft
Weight Reduction: Approx. 12 lb

These are manufacturer-reported figures and should not be interpreted as guaranteed gains for every vehicle.

Actual performance can vary according to:

• Engine condition
• Existing exhaust configuration
• Headers
• Rear muffler system
• Intake modifications
• Engine calibration
• Fuel quality
• Ambient conditions
• Vehicle specification
• Dyno equipment and testing procedure

Why Upgrading Matters:
The factory catalytic converters do not need to have failed for this system to be installed.

The Fabspeed Sport Cat X-Pipe is primarily a performance upgrade designed for drivers seeking improved exhaust flow without moving to a completely catless exhaust section.

Reasons for upgrading include:

• 200-cell HJS Sport Catalytic Converters
• Reduced exhaust restriction
• Cast stainless-steel X-pipe
• Knife-edged X-pipe design
• Improved exhaust-gas flow
• Improved throttle response
• Manufacturer-reported gains up to +15 WHP
• Manufacturer-listed +14 lb-ft torque
• Approx. 12 lb weight reduction
• More defined GT3 exhaust sound
• Mild increase in exhaust volume
• T304L stainless-steel construction
• Mandrel-bent tubing
• Direct bolt-on installation
• No cutting or welding required

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

FSPOR996GT3SCX

The product you are viewing cross references to these numbers

Fabspeed Sport Catalytic Converter X-Pipe.
The Fabspeed Porsche 996 Carrera Sport Catalytic Converter X-Pipe is a high-performance exhaust upgrade designed to replace the restrictive factory catalytic-converter section while retaining catalytic emissions treatment.

Fits:

• Porsche 996 C2 3.6L 1999-2004
• Porsche 996 C4 3.6L 1999-2004

Combining a specially developed X-pipe crossover with integrated 200-cell HJS Sport Catalytic Converters, the system is designed to improve exhaust-gas flow, increase horsepower and torque, reduce rear-end weight and enhance the distinctive Porsche flat-six exhaust note.

Constructed from mandrel-bent T304L stainless-steel tubing, the system provides a performance-focused alternative to the factory catalytic converters without using catalyst-bypass pipes.

What This Product Does:
The catalytic-converter section performs two important functions within the exhaust system.

First, it routes exhaust gases from the engine towards the rear mufflers. Second, the catalytic converters chemically process harmful exhaust pollutants before the gases leave the vehicle.

The Fabspeed Sport Catalytic Converter X-Pipe retains catalytic-converter functionality while providing a higher-flow exhaust path.

Its design is intended to:

• Reduce exhaust restriction
• Improve exhaust-gas flow
• Improve mid-range torque
• Improve high-RPM horsepower
• Enhance throttle response
• Reduce exhaust-system weight
• Produce a more sporting flat-six exhaust note
• Retain catalytic emissions treatment

Performance Benefits:
Fabspeed reports dyno-tested improvements of:

Horsepower: +25 WHP
Torque: +32 ft-lb
Weight Reduction: Approximately 11 lb

These figures are manufacturer-reported results and should not be considered guaranteed output for every vehicle.

Actual performance can vary depending on:

• Engine condition
• Vehicle specification
• Fuel quality
• Existing exhaust modifications
• Intake modifications
• ECU calibration
• Ambient conditions
• Dyno type and testing procedure

Why Upgrading Matters:
The Fabspeed Sport Catalytic Converter X-Pipe is also a performance upgrade, meaning the original catalytic converters do not need to have failed before the system can be installed.

Owners may choose the upgrade for:

• Increased exhaust flow
• Reduced exhaust restriction
• Improved mid-range torque
• Improved high-RPM horsepower
• Enhanced flat-six exhaust sound
• Reduced exhaust-system weight
• High-flow HJS catalytic converters
• Performance-oriented X-pipe design

It can also complement other upgrades such as performance headers, rear mufflers, intake modifications and suitable ECU calibration.

Fabspeed Sport Headers.

The Fabspeed Porsche 996 Carrera Sport Headers are high-performance exhaust manifolds designed to improve exhaust flow, engine response and the characteristic sound of the Porsche flat-six engine.

Fits:

• Porsche 996 C2 3.6L 1999-2004
• Porsche 996 C4 3.6L 1999-2004

  
Replacing the restrictive factory-style exhaust manifolds, the Fabspeed headers use equal-length, CNC mandrel-bent primary tubes to improve exhaust-gas scavenging and balance exhaust pulses between cylinders.

The headers terminate in specially designed F1-style merge collectors, creating a smoother transition for exhaust gases compared with the factory log-style collector arrangement.

Designed as a direct bolt-on replacement for the original headers, they provide a performance upgrade without requiring replacement of the entire exhaust system.

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

The factory exhaust manifold must perform the same basic function, but its design can create restrictions and less-efficient interaction between individual exhaust pulses.

The Fabspeed Sport Headers are designed to provide a smoother and more efficient route for exhaust gases leaving the engine.

Their equal-length primary design helps coordinate exhaust pulses before they reach the collector.

This is intended to improve:

• Exhaust-gas flow
• Exhaust scavenging
• Cylinder-to-cylinder exhaust pulse balance
• Engine breathing
• Throttle response
• Torque delivery
• Horsepower
• Flat-six exhaust character

Performance Benefits:

Fabspeed reports dyno-tested improvements of:

Horsepower: +15 WHP
Torque: +12 ft-lb
Weight Reduction: Approximately 2 lb

These are manufacturer-reported figures from a specific test vehicle and should not be interpreted as guaranteed output for every Porsche 996.

Actual results can vary depending on:

• Engine condition
• Vehicle specification
• Fuel quality
• Existing exhaust modifications
• Intake modifications
• ECU calibration
• Ambient temperature
• Dyno type and testing procedure

Why Upgrading Matters:
The Fabspeed Sport Headers are primarily a performance upgrade, rather than a routine replacement component.

Owners may choose them even when their original exhaust manifolds remain serviceable.

The principal reasons for upgrading include:

• Improved exhaust flow
• Equal-length primary design
• Improved scavenging
• Increased horsepower potential
• Increased torque potential
• More responsive engine character
• Smoother flat-six exhaust tone
• Reduced rear weight
• Direct bolt-on installation

They can also complement other performance modifications such as upgraded catalytic converters, performance mufflers, intake systems and suitable ECU calibration.