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Fabspeed Porsche 991 Turbo / Turbo S Valvetronic Supersport X-Pipe Exhaust System (2013-2016)
FS.POR.991T.SSSXVQ
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.
Enjoy all the benefits of Fabspeed's world-renowned Supersport X-Pipe Exhaust System, now with dual exhaust tones at the push of a button! Unleash the full song from your 991 Turbo's flat-6 engine by removing the heavy and restrictive factory mufflers and catalytic converters.
FEATURES:
- Fits all Porsche 991 Turbo / Turbo S twin turbo 3.8L vehicles (2013-2016)
- Available in a Race (Cat-Bypass) or Street (Sport Cat) configuration depending on your vehicle application to maximize horsepower and torque with a sporty and aggressive sound
- Fully controllable valved exhaust system includes a quad-resonated center x-pipe section which mitigates exhaust volume while the valves are closed. When the valves are opened, the exhaust bypasses the X-pipe for an aggressive tone. Two unique sounds; one exhaust!
- Dramatic improvement in sports car sound and power throughout the RPM range
- Optimized for maximum performance with NO catalyst generated check engine light, guaranteed
- Includes Deluxe Quad Style Tips in your choice finish
- Constructed from high-quality 14-16ga C.N.C. mandrel-bent T304L stainless steel for optimum flow and maximum durability
- Simple bolt-on installation; no cutting or welding required
- All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty
Click Here For Install Instructions for Porsche Homelink Connection For Valvetronic Exhaust Control
Click Here For Install Instructions for Porsche 991 Turbo Supersport X-Pipe Exhaust System
NOTE: For vehicles not equipped with a Porsche Sport Exhaust (PSE) / valves from the factory, a Fabspeed Valve Controller Kit is necessary to control the operation of the valves. Please choose the appropriate kit before ordering.
DOES MY CAR HAVE “PSE”?
The Porsche Sport Exhaust – better known as PSE – was a factory option available on many late model Porsches. You can quickly and easily determine if your vehicle is equipped with PSE by taking a look at your center console. If your console has a button on it with an “exhaust tip” icon (see photo), then your vehicle is equipped with PSE, and you should select the PSE option when adding this product to your cart. If you do not see this button, the your vehicle does not have PSE and you should select the standard exhaust option when checking out.
VALVES CLOSED: Enjoy our signature Supersport exhaust sound. Exhaust flow is channeled through Fabspeed's signature 2.75" 70mm Quad-Resonated X-pipe. We engineered it specifically to smooth out exhaust pulses for a sophisticated and exotic exhaust note while being as free flowing as possible. The tone is perfect for cruising around town or long highway drives. The lost wax investment cast X pipe is the best performance flow solution.
VALVES OPEN: At the push of a button, the valves are opened and the exhaust is free to rocket straight out from the Sport Cats with an aggressive scream. The full story of Porsche's turbocharged 3.8 L flat-6 is unleashed, along with an intoxicating barrage of crackles and pops upon deceleration and downshifting. This system truly needs to be heard and felt in person to be appreciated. You basically have a GT2RS exhaust system on your car with HJS German 200 cell HE catalytic converters.
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HELICAL VALVES UNITED KINGDOM U.K.:
We use Helical Valves for their unprecedented industry leading OEM Tier 1 quality. Helical Valves are the proven choice by many OEM manufacturers such as Porsche, McLaren, Ferrari, Lamborghini, Aston Martin for their hard core sports cars and Hypercars. Helical vacuum actuated exhaust valves are Aerospace quality silicon carbide valves that withstand Extreme racing type temperatures.
- Incredible Ultimate reliability/ durability - proven in racing competition and validated by Porsche, Ferrari, Lamborghini and Mclaren on their purpose built sports cars and track cars as the ONLY valves utlized.
- High-temperature bearings at both ends of the butterfly spindle. Silica carbide and 321 stainless steel Aeropsace quality tested and developed.
- Cast stainless steel valve body with stiffening ribs for ultimate durability and to reject extreme heat.
Why We Choose HJS Catalytic Converters:
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. If you'd like to learn more, watch our video about HJS catalytic converters.
Sport Catalytic Converter (STREET) - 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) - 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.

Fabspeed Porsche 991 Turbo / Turbo S Valvetronic Supersport X-Pipe Exhaust System (2013-2016)
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
Most in-stock items ship within 2–3 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, you'll 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 — we typically respond within 24 hours on weekdays.
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FAQ's
Common questions are answered directly on our [FAQ page], including details about shipping, returns, warranty coverage, and how to verify product fitment.
If you can't find what you're looking for, just reach out — we'll 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.
We're available Monday–Friday and typically respond within one business day. For partnership or dealer inquiries, please include your company information and brand interest.
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 you're unsure, reach out to our team with your VIN or vehicle details — we'll 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 2–3 business days. Lead times for made-to-order or imported parts vary by brand, and estimated delivery windows are listed on each product page. You'll 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 — we'll help you through the process quickly.
Can I order a part that isn't listed on the site?
Yes. If you're 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.


