do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
- Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
For early model exhaust brackets
The Fabspeed Valvetronic X-Pipe Exhaust System for the 718 4.0L cars wakes up the sleepy Porsche PSE exhaust and gives them a truly exotic sports car sound all while retaining the functionality of PSE (Porsche Sport Exhaust). Our design process started with 3D scanning the entire exhaust system using our CREAFORM 700 Handscan so that we could make a complete Solidworks 3D model of the exhaust. We then designed the exhaust and fixtures using that model so that the exhaust fit perfectly to OEM standards. After multiple revisions for sound and dyno testing we settled on using our CAD flow engineered investment cast X-Pipe and 2.5" 63.5 mm tubing for the most power and exotic sports car sound. The CAD flow modeled X-pipe is an exclusive Fabspeed part that gives a smooth high pitched exotic sound and flows much better than a X-Pipe handmade from U bends cut and welded together. The exhaust valves we use are made by Helical Limited in the United Kingdom. These ISO 9001 certified valves are the same ones Ferrari, McLaren and Porsche use on their GT cars. The flanges are thick 304 stainless steel that we CAD designed to perfectly match the OEM flanges and reuse the factory metal gaskets.
SOUND: With PSE off our Valvetronic exhaust gives a nice increase in volume without any cabin drone. With PSE on and the valves open it turns the 4.0L's exhaust note into a truly exotic sound with a significant increase in volume. This system will turn heads as you rip by.
POWER: When used in conjunction with our GPF Delete Over Axle Pipes we saw a gain of 14 HP and 32 ft/lbs of TQ at 2400 RPM, 8 HP and 9 ft/lbs of TQ at 4900 RPM and 12 HP and 8 ft/lbs of TQ at 7500 RPM. This is low end torque you'll really feel around town and horsepower that continues all the way up to redline.
FEATURES:
• Fits all 718 Cayman GT4 / GTS / Spyder Cars 2020+ (For early model exhaust brackets)
• Significant Dyno gains across the RPM band. +32ft/lbs TQ @ 2400RPM, +18ft/lbs TQ @ 3600RPM, and +15.5HP @ 7100RPM
• Helical Limited U.K. Silicon Carbide exhaust valves
• CAD designed X-Pipe made using investment casting for maximum possible flow and spectacular sports car sound
• Constructed from high-quality 14-16ga CNC mandrel-bent T304L stainless steel for optimum flow and maximum durability
• Emissions legal in all 50 states
• No Check Engine Light guaranteed
• Direct simple bolt-on installation, no cutting or welding required
• Weight savings of 4lbs 1.8KG vs the factory PSE exhaust
• Backed by Fabspeed's 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.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FSPOR718GT4VLV
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT2 RS 2011-13
The Fabspeed 70mm Supersport X-Pipe Exhaust System is a high-performance exhaust upgrade designed specifically for the 2011 Porsche 997.2 GT2 RS.
Fits:
- Porsche 997 MKII GT2 RS 2011-13
The system replaces the factory rear mufflers and catalytic converters with a freer-flowing 70mm X-pipe arrangement incorporating 200-cell HJS Sport Catalytic Converters. It is engineered to reduce exhaust restriction, improve throttle response and give the GT2 RS a more pronounced, exotic performance exhaust note.
Manufactured from high-quality 14–16 gauge CNC mandrel-bent T304L stainless steel, the system is designed to withstand the extreme temperatures and operating demands of the twin-turbocharged GT2 RS.
Fabspeed's Deluxe GT2 Style exhaust tips are also included, providing a finished appearance that complements the rear of the vehicle.
What This Product Does:
The exhaust system carries combustion gases away from the turbochargers and engine while controlling exhaust flow, emissions and sound.
On a high-performance turbocharged engine such as the GT2 RS, reducing unnecessary exhaust restriction downstream of the turbochargers can help gases leave the system more efficiently.
The Fabspeed Supersport X-Pipe is designed to:
- Improve exhaust gas flow
- Reduce post-turbo exhaust restriction
- Improve throttle response
- Support more responsive turbocharger operation
- Produce a stronger and more exotic exhaust sound
- Replace the restrictive factory rear mufflers
- Provide high-flow catalytic converter performance
- Improve long-term corrosion resistance
- Provide a durable stainless-steel replacement for ageing factory components
- Enhance the appearance of the exhaust with Deluxe GT2 Style tips
The X-pipe layout also allows exhaust gases from both sides of the engine to interact within the system, contributing to its distinctive sound characteristics.
Symptoms Of Wear Or Failure:
The exhaust system on a high-performance vehicle such as the 997.2 GT2 RS experiences extreme heat, vibration and repeated thermal cycles.
Signs of deterioration can include:
- Exhaust blowing, ticking or hissing noises
- Cracks around pipes, welds or joints
- Black soot around leaking connections
- Loose or damaged exhaust clamps
- Corrosion or surface deterioration
- Metallic rattling from the catalytic converters
- Increased or irregular exhaust noise
- Exhaust fumes around the rear of the vehicle
- Reduced throttle response
- Increased turbo lag
- Loss of engine performance
- Check Engine Light associated with catalyst efficiency
- Unusual sulphur-like exhaust smells
- Damaged or deformed exhaust pipework
- Loose exhaust tips or poor outlet alignment
Catalytic converters can also deteriorate internally through extreme heat and repeated thermal cycling. The catalyst substrate may break apart, become loose or partially block the exhaust path.
Why Replacement Matters:
A damaged or restrictive exhaust system can affect both engine performance and reliability.
Exhaust leaks allow hot gases to escape before reaching the intended outlets. This can increase heat exposure around nearby components, cause unwanted noise and gradually worsen as cracks or joints deteriorate.
A damaged or partially blocked catalytic converter can create additional exhaust backpressure.
On a twin-turbocharged Porsche GT2 RS, excessive restriction downstream of the turbochargers can work against efficient exhaust evacuation and may negatively affect throttle and turbocharger response.
Replacing deteriorated exhaust components helps restore:
- A secure and leak-free exhaust path
- Efficient exhaust gas evacuation
- Consistent turbo response
- Correct catalytic converter operation
- Proper exhaust outlet positioning
- Reduced risk of further heat or corrosion-related damage
For a vehicle with a healthy standard exhaust, upgrading to the Fabspeed system provides the additional advantages of freer exhaust flow, a more aggressive exhaust note and performance-focused construction.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FSPOR9972GT2RSSSX
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT2 RS 2011-13
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
- Porsche 997 MKII GT2 RS 2011-13
The Fabspeed HJS German Sport Catalytic Converters are high-flow replacement catalysts designed specifically for the 2011 Porsche 997.2 GT2 RS.
Fits:
- Porsche 997 MKII GT2 RS 2011-13
Using premium 200-cell HJS HD Sport catalytic converters, the system is engineered to reduce exhaust restriction compared with the original catalysts while continuing to provide catalytic emissions treatment.
The catalysts are integrated into high-quality 14–16 gauge CNC mandrel-bent T304 stainless-steel pipework, providing excellent resistance to exhaust heat, corrosion and repeated thermal cycling.
Designed as a direct replacement for the factory catalytic converters, this upgrade is intended to improve exhaust flow, throttle response and exhaust character without converting the vehicle to a catalyst-delete configuration.
What This Product Does:
Catalytic converters form part of the vehicle's emissions-control and exhaust system.
Their primary purpose is to chemically convert harmful exhaust pollutants into less harmful gases before they leave the tailpipes. However, exhaust gases must also pass through the catalyst substrate, meaning its design can influence exhaust restriction.
The Fabspeed HJS Sport Catalytic Converters are designed to:
- Reduce exhaust restriction compared with more restrictive catalysts
- Improve exhaust gas flow
- Support improved throttle response
- Allow the turbochargers to evacuate exhaust gases more efficiently
- Provide catalytic emissions treatment
- Produce a stronger performance exhaust note
- Maintain a catted exhaust configuration
- Replace ageing, damaged or restricted original catalytic converters
- Provide durable stainless-steel construction
Fabspeed states that the 200-cell HJS EMITEC catalysts can flow up to approximately 90–93% of a straight pipe in many applications, while retaining catalytic functionality.
Symptoms Of Wear Or Failure:
Catalytic converters operate at extremely high temperatures and can deteriorate through age, contamination, physical damage or repeated thermal stress.
Common symptoms of a failing or restricted catalytic converter include:
- Check Engine Light relating to catalyst efficiency
- Reduced engine performance
- Sluggish throttle response
- Increased turbo lag
- Loss of power at higher engine speeds
- Excessive exhaust backpressure
- Metallic rattling from inside the catalyst
- Broken or loose catalyst substrate
- Sulphur or rotten-egg-like exhaust smell
- Unusually high exhaust temperatures
- Increased fuel consumption
- Failed emissions testing
- Irregular or restricted exhaust flow
- Excessive heat around the catalytic converter area
- Visible damage or cracking around the catalyst housing
- Black soot around leaking exhaust connections
A damaged catalyst substrate can break apart internally and partially obstruct the exhaust path, significantly increasing restriction.
Why Replacement Matters:
A deteriorated catalytic converter can affect both emissions performance and engine operation.
If the internal catalyst substrate begins to collapse or become blocked, exhaust gases cannot leave the engine as efficiently. On a turbocharged engine such as the GT2 RS, this increased post-turbo restriction can negatively affect throttle response and turbocharger performance.
Excessive restriction can also increase exhaust temperature and thermal stress within the system.
Replacing damaged or restricted catalytic converters helps restore:
- Proper exhaust gas flow
- Reduced exhaust backpressure
- Consistent turbocharger response
- Correct catalytic emissions treatment
- Normal throttle response
- A secure and leak-free exhaust system
Replacement is also important when the catalyst substrate has physically deteriorated, as loose material can continue to break apart and further obstruct the exhaust.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FSPOR9972GT2RSSC
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT2 RS 2011-13
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.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FSPOR9972GT2RSCB
The product you are viewing cross references to these numbers