Fabspeed Exhaust

Adjustable slip-on outlets for the Fabspeed GT4 Valvetronic Exhaust System which re-direct and control the exhaust volume by over 5dB; perfect for decibel-limited motorsport venues!                                                                        

The GT4 was crafted to be a track weapon, and we want to make sure you can use your Fabspeed Motorsports components at tracks which have decibel limits. These outlets are great for reducing the volume of your Fabspeed-equipped GT4 at track and motorsports events. The adjustable turndown tips can be quickly adjusted to point the exhaust away from any track-side testing equipment to help you stay within many venues' sound limit regulations. During testing outside of our facility, we experienced an average reduction of 6 dB with our turndown tips with the loudest run reaching 97 dB.

FEATURES:
• Fits all Porsche 981 Cayman GT4 vehicles / 981 Boxster Spyder equipped with a Fabspeed Motorsport Valvetronic Exhaust System or Fabspeed Deluxe Bolt-On Tips. They are not compatible with the factory/OEM exhaust
• Constructed from high quality T304L stainless steel in house at Fabspeed
• Simple bolt-on installation; no cutting or welding required
• Includes all required mounting hardware
• 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's Exhaust Single-Wall Tips Brushed Stainless Steel

A stylish tip alternative for the Fabspeed GT4 Valvetronic Exhaust System, hand finished in house
We're happy to offer a new alternative tip option for our Valvetronic Exhaust System. Each set of 4" tips is hand built out of stainless steel and hand finished with pride at Fabspeed Motorsport.

FEATURES:
• Fits all Porsche 981 Cayman GT4 / 981 Boxster Spyder vehicles equipped with a Fabspeed Motorsport Valvetronic Exhaust System or Fabspeed Deluxe Bolt-On Tips. They are not compatible with the factory/OEM exhaust
• Constructed from high quality T304L stainless steel in house at Fabspeed
• Simple bolt-on installation; no cutting or welding required
• Includes all required mounting hardware
• 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.

Related reference numbers
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FSPOR981GT4SWTBR

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These exhaust tips for the Porsche 981 Cayman GT4 are a quick bolt-on option for upgrading the look of the already aggressive rear-end. Available in polished or carbon fiber finishes, these exhaust tips are the extra flair that will set your Porsche apart.

Increase the aesthetic appeal of your Cayman GT4 with sporty exhaust tips that give your car the look to match its performance.

FEATURES:
• Fits all Porsche 981 Cayman GT4 / 981 Boxster Spyder equipped with factory mufflers

• Available in Polished, Black Chrome, and Carbon Fiber finish
• Dual 3.5" outlets constructed from T304L stainless steel and / or 100% authentic carbon fiber
• Simple DIY bolt-on installation no cutting or welding required
• Direct replacement for the factory outlet tips
• 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.

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

FSPOR981GT4DLTB

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These exhaust tips for the Porsche 981 Cayman GT4 are a quick bolt-on option for upgrading the look of the already aggressive rear-end. Available in polished or carbon fiber finishes, these exhaust tips are the extra flair that will set your Porsche apart.

Increase the aesthetic appeal of your Cayman GT4 with sporty exhaust tips that give your car the look to match its performance.

FEATURES:
• Fits all Porsche 981 Cayman GT4 / 981 Boxster Spyder equipped with factory mufflers
• Available in Polished, Black Chrome, and Carbon Fiber finish
• Dual 3.5" outlets constructed from T304L stainless steel and / or 100% authentic carbon fiber
• Simple DIY bolt-on installation no cutting or welding required
• Direct replacement for the factory outlet tips
• 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.

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

FSPOR981GT4DLTCF

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These exhaust tips for the Porsche 981 Cayman GT4 are a quick bolt-on option for upgrading the look of the already aggressive rear-end. Available in polished or carbon fiber finishes, these exhaust tips are the extra flair that will set your Porsche apart.

Increase the aesthetic appeal of your Cayman GT4 with sporty exhaust tips that give your car the look to match its performance.

FEATURES:
• Fits: all Porsche 981 Cayman GT4 / 981 Boxster Spyder equipped with factory mufflers
• Available in Polished, Black Chrome, and Carbon Fiber finish
• Dual 3.5" outlets constructed from T304L stainless steel and / or 100% authentic carbon fiber
• Simple DIY bolt-on installation no cutting or welding required
• Direct replacement for the factory outlet tips
• 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.

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

FSPOR981GT4DLTP

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Fabspeed Competition Conversion Kit - For Fabspeed Valved Exhaust. 

The Fabspeed Porsche 981 Cayman GT4 / Boxster Spyder Competition Conversion Kit is a lightweight performance exhaust upgrade designed to transform an existing Fabspeed Motorsport Valvetronic Exhaust System into a louder, lighter and more aggressive competition-style exhaust configuration.

Fits:

• Porsche Boxster 981 Spyder 3.8L 2016
• Porsche Cayman GT4 3.8L 2015-16  

Developed specifically for the Porsche 981 Cayman GT4 and Boxster Spyder models manufactured between 2015 and 2016, this conversion kit eliminates the valved exhaust section of the compatible Fabspeed system and replaces it with direct-flow stainless steel muffler bypass pipes.

The result is an uncompromising exhaust configuration that emphasises the distinctive sound of Porsche's naturally aspirated 3.8-litre flat-six engine.

The original Fabspeed Valvetronic Exhaust System provides adjustable exhaust sound through its electronically controlled, vacuum-actuated valve arrangement. This allows the driver to switch between quieter and more aggressive exhaust characteristics.

However, for Porsche enthusiasts who prefer maximum exhaust volume and a more focused motorsport experience, the additional valve hardware and associated sound-control features may no longer be required.

Fabspeed developed the Competition Conversion Kit to provide a straightforward alternative.

By replacing the valved section with fixed, free-flowing bypass pipes, the kit removes the need for exhaust valve operation in that section and delivers a consistently aggressive exhaust note.

Manufactured in-house by Fabspeed Motorsport from high-quality T304L stainless steel, the conversion pipes use a 2.5-inch (63.5 mm) diameter design to maintain an unrestricted exhaust path.

The kit also reduces exhaust system weight by approximately 11 lbs (5 kg) compared with the corresponding valved portion of the Fabspeed Motorsport exhaust.

This weight saving contributes to a lighter exhaust configuration, particularly desirable for track-focused vehicles where reducing unnecessary mass is an important consideration.

Installation is designed to be straightforward. The competition pipes bolt directly into the existing Fabspeed exhaust arrangement using the current Fabspeed AccuSeal clamps.

No cutting or welding is required, and the modification is reversible, allowing the original Fabspeed valved section to be reinstalled if a quieter exhaust configuration is required.

The Competition Conversion Kit is particularly suitable for dedicated track cars, motorsport-inspired builds and Porsche owners seeking the most aggressive sound available from their compatible Fabspeed exhaust system.

Important: This kit is only suitable for Porsche 981 Cayman GT4 and Boxster Spyder vehicles already equipped with the corresponding Fabspeed Motorsport Valvetronic Exhaust System. It is not compatible with the standard Porsche factory exhaust.

What This Product Does:
The Fabspeed Competition Conversion Kit replaces the valved section of the existing Fabspeed Motorsport Valvetronic Exhaust System with straight-through muffler bypass pipes.

Its primary functions include:

• Converts the Valved Exhaust into a Competition Configuration: Replaces the relevant valved section with fixed, direct-flow exhaust pipes.
• Eliminates Exhaust Valve Operation: Removes the adjustable sound-control function from the converted section.
• Creates a Louder Exhaust Note: Produces a consistently aggressive exhaust sound without the quieter valve setting.
• Enhances Flat-Six Engine Sound: Makes the distinctive 3.8-litre naturally aspirated Porsche engine more prominent.
• Reduces Exhaust Weight: Saves approximately 11 lbs compared with the original Fabspeed Valvetronic section.
• Provides Direct Exhaust Gas Flow: Uses straight-through pipework instead of the valved muffler arrangement.
• Supports Motorsport Applications: Provides a lightweight, high-volume exhaust configuration for appropriate track-focused use.
• Maintains Stainless Steel Durability: T304L stainless steel construction offers resistance to corrosion and high exhaust temperatures.
• Preserves Compatible Fabspeed Connections: Uses the existing exhaust mounting arrangement and AccuSeal clamps.
• Allows Reversible Conversion: The original Fabspeed valved section can be reinstalled without permanent exhaust modification.
• Simplifies the Converted Exhaust Section: Eliminates the valves and their moving mechanisms from the replaced portion of the system.
• Maintains the Existing Catalytic Converters: As a cat-back conversion, it does not require removing the vehicle's catalytic converters.

Symptoms Of Wear Or Failure:
The Fabspeed Competition Conversion Kit is primarily an exhaust performance upgrade, not a routine maintenance component.

However, it may also be considered when an existing compatible Valvetronic exhaust section has become damaged or when an owner wishes to eliminate the associated valve mechanism.

Common problems affecting the existing exhaust system include:

• Exhaust sound does not change when the valves are operated.
• A valve becomes stuck open or closed.
• Inconsistent response from the valve system.
• Metallic rattling around the valve assembly.
• Irregular or incomplete valve movement.
• Ticking, hissing or blowing sounds.
• Unexpected exhaust noise.
• Soot marks around pipe connections.
• Exhaust fumes near the vehicle.
• Increased noise under acceleration.
• Heavy rust or corrosion.
• Weakened welds.
• Cracked mounting points.
• Perforated pipe sections.
• Loose or damaged hardware.

Why Replacement / Upgrading Matters:
Installing the Fabspeed Competition Conversion Kit changes the character and weight of an existing Valvetronic exhaust system.

The main advantages are reduced weight, simplified exhaust construction and a more aggressive, consistently loud exhaust note.

• Maximum Exhaust Sound: Removes the quieter valved operating mode and delivers a consistently aggressive exhaust character.
• Motorsport-Inspired Driving Experience: Emphasises the sound of the Porsche 981 GT4 and Spyder's naturally aspirated flat-six engine.
• Approximately 11 lb Weight Reduction: Eliminates weight associated with the replaced Valvetronic section.
• Simplified Exhaust Arrangement: Removes moving exhaust valve mechanisms from the converted section.
• Direct Exhaust Flow: Uses 2.5-inch stainless steel bypass pipes.
• Durable Stainless Steel Construction: Manufactured from corrosion-resistant T304L stainless steel.
• Compatible with Existing Fabspeed Systems: Designed specifically for the corresponding Fabspeed Valvetronic Exhaust.
• Reversible Modification: Allows the original valved components to be reinstalled.
• No Cutting or Welding: Uses the existing exhaust connections for bolt-on installation.
• Ideal for Track-Focused Builds: Provides a lighter, louder exhaust configuration.
• Reduced Dependence on Valve Components: Eliminates valve-related mechanical operation from the replaced section.
• Fabspeed Motorsport Engineering: Manufactured by a specialist performance exhaust producer.

Related reference numbers
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FSPOR981GT4CCK

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Fabspeed's Lightweight Competition Exhaust System is for those who like it loud, light as possible, and powerful.

FEATURES:
• Fits all Porsche 981 Cayman GT4 / 981 Boxster Spyder vehicles 2015-2016 worldwide
•   CAT-BACK emissions legal bolts onto OEM Porsche catalytic converters.
•   Choose between real matte Carbon Fiber tips or Single Wall stainless steel brushed ips that are made in house for a racecar look
•   2.5" 63.5mm diameter piping straight through for maximum power gains
•   Weighs 19 lbs less than the factory rear muffler system.
•   Constructed from 14-16ga T304L stainless steel tubing for maximum power and durability
•   Direct bolt-on installation; no cutting or welding required
•   All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty                                   

SOUND: 

This stripped down variant of our Valvetronic Exhaust is ready to unleash the full glorious sound of the 3.8L. You'll be treated to a glorious roar befitting of the GT4. Burbles and backfires erupt in abundance, and downshifts summon a bark that will make all eyes and ears around focus on you. We're not exaggerating. This system will put an ear-to-ear smile on the most miserly of faces. This is exhaust is LOUD - suitable for those running stock headers or perfect for the track as part of a full performance package. Pair with our turndown tips if sound limits at the track are a concern. 

POWER:

When combined with Fabspeed's Race Headers, our Lightweight Competition Exhaust System allows you to push 375 whp out of your GT4 or 450HP at the crankshaft! Even with Sport Headers coming in at 371 whp, the gains in power are as impressive as the sound. The Fabspeed exhaust suite completely eliminates the torque dip in the 3500 RPM range and offers power gains all the way through redline. The increase in low end power will make a great difference in street drivability with the long gearing of the GT4. 

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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FSPOR981GT4CES

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Valvetronic GT3 Muffler Conversion Kit.

Porsche Boxster Cayman owners have requested a conversion kit that allows the installation of a Porsche OEM 991 GT3 center muffler onto their cars. Fabspeed Motorsport listened and designed in CAD and built inhouse a lightweight installation kit that allows any 6 speed Porsche 981 GT4 or Spyder owner to install an OEM GT3 center muffler (A PDK version will also be available once we are able to test fitment). This kit also allows the installation of a Fabspeed 991 GT3 Center Muffler Bypass Pipe or 991 GT3 Center Mini Maxflo Performance Exhaust onto your 981 GT4/Spyder.

The system consists of 2.5" 63.5mm CNC mandrel bent one piece Left and Right side over axle pipes and clamps. Then a set of valved side muffler inlet Y-pipes that retain the factory PSE valved exhaust functionality. The valves are OEM Porsche GT3 HELICAL vacuum-actuated exhaust valves that are imported from the U.K. We use our FLOW Waterjet to cut a CAD designed, lightweight, stainless steel mounting bracket to hold the muffler; hardware for installation is included. This and the Factory Porsche muffler band straps hold everything in place. For tips, you can use the factory 991 GT3 tips or you can order our custom exhaust tip mount with any choice of our signature tips.

SOUND: Enjoy the characteristic sound of a factory Porsche engineered exhaust but with a nice increase in volume! With PSE off (valves closed), the exhaust is still tame and livable in the cabin. However, with PSE on (valves open) hear that flat 6 howl up to redline! The larger over axle pipes that are included also contribute to the overall louder tone.

POWER: The 991 GT3 muffler was designed by Porsche to support 475 HP, because of this it flows a lot better than the 981 GT4 muffler that was only designed for 385 HP. We expect this increase in flow, helped by our larger over axle pipes and muffler inlets, to give a nice HP increase.

FEATURES:

• Fits all 6 speed manual Porsche 981 Cayman GT4 / 981 Boxster Spyder vehicles (2015-2016). A PDK version will also be available once we are able to test fitment
• Choose between your choice of Premium Fabspeed Exhaust Tips or use OEM 991 GT3 Tips.
• CNC Mandrel bent 2.5" 63.5 precision over axle pipes to valvetronic inlet pipes
• Helical Aerospace United Kingdom exhaust valves- same OEM quality valves used on Porsche GT3, GT3RS. Made with Silica carbide.
• Constructed from 14-16ga T304L stainless steel tubing for maximum power and durability
• Direct bolt-on installation; no cutting or welding required
• All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty.

NOTE: OEM GT3 center muffler is NOT included

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
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FSPOR981GT4GT3CK

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