Boxster Cayman 718 Supercup Turbo-back Performance Exhaust Race System with De-Cat


Available for pre-order

Supercup Turboback Exhaust System

(with Catalytic Converter Delete & Tip Options)


Porsche 718 Boxster/Cayman

FABSPEED Motorsport

Fabspeed's Supercup Turboback Exhaust System for the 718 Boxster/Cayman is the ultimate solution for performance, with 3" mandrel bent tubing to reduce turbo lag and 36lbs / 16.4kg of weight while offering an invigorating increase in turbo sound and boxer rumble.                  

SOUND: With Sport mode activated burbles and backfires erupt in abundance on overrun, and downshifts summon a bark that will make all eyes and ears around focus on you. Worry not about drone as the volume level in the cabin is quite refined given the aggressive nature of the exhaust - this system is very liveable on a daily driven car. The factory exhaust mutes the turbochargers, the free-flowing Supercup reveals their presence with a very pleasing increase in spooling sounds, adding more character to your driving experience. The boxer engine rumble is enhanced and refined in a distinct Porsche tone.

FINISH: Full polished T304L stainless steel, beautifully welded together and finished off with hand made T304L single-wall stainless steel tips or premium carbon fibre shrouded tips which fit the rear bumper of the 718 like a finely tailored suit.

CATBYPASS PIPE: We also offer the Supercup Turboback without a catalytic converter for those looking for the most aggressive exhaust in terms of power, exhaust volume, and turbo noise. Check our other listings for system with De-Cat pipe. A check engine light can be expected due to eliminating the catalytic converter. The CEL occurrence can be reduced/eliminated through the use of our O2 Spacers or upcoming tuning solutions. Fabspeed Highly Recommends an ECU Tune for proper vehicle operation and to eliminate any possible engine or hesitation issues. 

POWER: The addition of Fabspeed's Supercup Turboback Exhaust System with Sport Cat added 10 whp and 13 ft-lbs at 4000 rpm as tested on our Dynojet. Expect more power and response with our Catbypass option. The Supercup Turboback is a very free flowing system and full potential will be realized with a tune. We look forward to extracting even more power with our hardware in conjunction with a Fabspeed ECU Tune at a later date as soon as possible.


  • Factory Exhaust System (tips to turbo): 66 lbs / 30 kg
  • Fabspeed Supercup Turboback Exhaust with Catbypass Pipe: 26 lbs / 11.7 kg (-40 lbs)


  • Fits all Porsche 718 Boxster/Cayman Base/S models (2017+)
  • Choose between real matte Carbon Fiber tips or hand made T304L Single-Wall Stainless Tips for a stylish look
  • 3" diameter CNC mandrel bent piping straight through for maximum power gains
  • Catless Version: ECU Tune recommended for proper vehicle operation and to eliminate any possible engine or hesitation issues
  • Constructed from thick .065" wall T304L stainless steel tubing for maximum power and durability
  • Designed and built in-house at Fabspeed in our full precision machine shop
  • Direct bolt-on installation; no cutting or welding required
  • All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty



Cat Bypass (RACE) - This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. We suggest pairing this product with racing software to prevent fault codes and check engine lights. Racing Cat Bypass Pipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.

Exotic Car Performance Specialist

For over 20 years, Fabspeed has been engineering and manufacturing the world's finest stainless steel high performance exhaust systems and components, air intake products, ECU tuning, and more, specifically-tailored for high-end sports cars and exotics. From Porsche to McLaren, our expertise is unmatched and it shows in everything that we do. Our dyno-proven performance products provide an exhilarating driving experience and are backed by a Limited Lifetime Warranty.

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