











718 Boxster/Cayman Supercup Turboback Exhaust System (2017+)
FS.POR.718.SCUPXXX-1
PURCHASE DISCLAIMER: Fabspeed Motorsport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Fabspeed Motorsport will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls.
Fabspeed's SupercupΒ TurbobackΒ Exhaust System for the 718 Boxster/Cayman is the ultimate solution for very aggressive sound and performance, with 3"/ 76mmΒ mandrel-bentΒ tubing to reduce turbo lag and immediately remove 36lbs / 16.4kg of weight from all Cayman/Boxster 718 cars while offering an invigorating increase in turbo sound and boxer engine rumble. Increased throttle response andΒ track-worthyΒ sound ensures you feel Fabspeed's difference.
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. 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.Β
Fabspeed highly Recommends an ECU Tune for proper vehicle operation and to eliminate any possible engine or hesitation issues.Β
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. 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.Β This system is aggressive and maximizes power while also removing unnecessary weight from the LEFT side of the car.Β
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.
WEIGHT:
- Factory Exhaust System (tips to turbo): 66 lbs / 30 kg
- Fabspeed Supercup Turboback Exhaust with Sport Cat: 30 lbs / 13.6 kg (-36 lbs)
- Fabspeed Supercup Turboback Exhaust with Catbypass Pipe: 26 lbs / 11.7 kg (-40 lbs)
FEATURES:
- Fits all Porsche 718 Boxster/Cayman Base/S Models 2017+ and GTS Models 2017-2020 Worldwide
- Your choice of genuine carbon fiber tips, or hand made single-wall stainless steel tips in a brushed or polished finish
- 3" diameter CNC mandrel bent piping for minimal restriction and maximum performance
- 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 (May not fit on lowered vehicles, check clearances before purchasing)
- All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty
Why We Choose HJS Catalytic Converters:Β
HJS German imported catalytic converters are made from some of the highest grade materials you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93-95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able to provide enough emissions scrubbing to prevent a check engine light.Β Β Β If you'd like to learn more, watch our video about HJS catalytic converters.
Sport Catalytic Converter (STREET)Β - 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 contains a High-Flow Sport Catalytic Converter solely intended for track and race cars as it is 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.
Cat Bypass (RACE)Β - 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. 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.

718 Boxster/Cayman Supercup Turboback Exhaust System (2017+)
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Shipping Information
Most in-stock items ship within 2β3 business days from our U.S. warehouse or directly from the manufacturer. Custom or made-to-order parts may have extended lead times, which will be noted on the product page.
Once your order ships, youβll receive tracking details via email.
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Customer Support
Need help with fitment, product details, or installation? Our team of enthusiasts is here to help.
You can reach us anytime through our contact form or at info@houseoffuel.co β we typically respond within 24 hours on weekdays.
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FAQβs
Common questions are answered directly on our [FAQ page], including details about shipping, returns, warranty coverage, and how to verify product fitment.
If you canβt find what youβre looking for, just reach out β weβll make sure you get the right information before you order.
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Contact Us
Have a specific question or request? Use our contact form or email us at info@houseoffuel.co.
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FAQs
Please read our FAQs page to find out more.
How do I know if a part fits my car?
Every product page includes detailed fitment information covering model, year, and variant. If youβre unsure, reach out to our team with your VIN or vehicle details β weβll confirm compatibility before you order. Our goal is to ensure every part fits the first time.
Are you an authorized dealer for the brands you carry?
Yes. House of Fuel works directly with our manufacturing partners and authorized distributors to guarantee 100% authentic products. This ensures you receive genuine parts backed by the full manufacturer warranty and support.
How long does shipping take?
In-stock items typically ship within 2β3 business days. Lead times for made-to-order or imported parts vary by brand, and estimated delivery windows are listed on each product page. Youβll receive tracking as soon as your order ships!
What is your return policy?
We accept returns within 14 days of delivery on new, unused items in their original packaging. Custom, special-order, or electronic components may be non-returnable. For all return requests, contact us first β weβll help you through the process quickly.
Can I order a part that isnβt listed on the site?
Yes. If youβre looking for a specific brand or part not currently on the website, send us a message. Our sourcing team can often locate or special order it directly from the manufacturer or distributor network.



