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Fabspeed Porsche 991.2 GT2 RS Valvetronic Sport Cats (2018+)

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Fabspeed Porsche 991.2 GT2 RS Valvetronic Sport Cats (2018+)



Replace the restrictive OEM ceramic GT2RS 700 cell catalytic converters with ultra free flow HJS German Imported tri-metallic race quality 200 cell HD cores that flow 92% to 93% of  a straight pipe.  Fabspeed Motorsport USA is the Exclusive Importer for HJS Emissions technology Deutschland Germany for all of North and South America. We use the very best largest possible imported 200-cell HJS Sport Cats increase that immediately exhaust flow for better power and throttle response and improved superlative GT2RS dynamic sports car sound!

Simple direct replacement bolt on HJS catalytic converters for the ceramic GT2RS cats and integrate easily with the titanium OEM center muffler.  These are the very largest HJS HD German cores that will fit on this car. Guaranteed 92% flow of a straight pipe with no Check Engine lights no ECU tune required. Fabspeed also uses Helical U.K. imported 3.0" 74mm vacuum actuated exhaust valves. Helical LTD. Aerospace England supplies these ultra high temperature valves to Porsche, Ferrari, Mclaren, Aston Martin as OEM due to bulletproof reliability. If it's NOT engraved with Helical on top it will fail, rattle or melt internally. If its not a Helical exhaust valve it will not work. 

Porsche used a small 60mm 2.375” exhaust valve for the bypass to the exhaust tip on each exhaust bank. Fabspeed Motorsport went much larger 74mm 3.0" valve for enhanced flow and utilized a the same larger, Therefore higher exhaust flow, Helical UK silica carbide  that Ferrari uses on the 488/ 488 Pista, F12 and Lamborghini uses on the Huracan, Performante and SVJ Aventador and Mclaren Senna.  Therefore your GT2RS gets the Worlds Very Best ultra quality exhaust valve in a larger size style  for more exhaust flow and sports car sound. Fabspeed engineering was the 1st company to enhances PSE exhaust on the GT2RS.

The above Fabspeed Motorsport GT2RS high-flow catalytic converter system is the result of design, engineering and the very best globally sourced components, based on over 30 years of Motorsport design and quality.                                                              


  • Fits all Porsche 991.2 GT2 RS vehicles worldwide (2018+)
  • Quicker turbo spool and throttle response guaranteed 
  • HJS German imported 200 CPSI extra extra large Sport Catalytic Converters with ECU Tune adds an insane 75 WHP at 7200 RPM and 108 FT/LBS of torque at 3200 RPM
  • Direct replacement bolt-on XXL HJS German imported 200 cell HD European level 6 wash coat catalytic converters- genuine articles not counter-fit no black market. The HJS German catalytic converters chosen by Fabspeed are the largest and best possible choice direct from Deutschland.
  • Constructed from high-quality  14-16 gauge, C.N.C. mandrel bent T304 Stainless Steel
  • OEM Tier 1 quality valves from Helical. Porsche Sport Exhaust PSE is 100% maintained. 
  • Optimized for maximum performance with NO catalyst generated check engine light, guaranteed
  • Simple super easy installation only 4 exhaust clamps to remove and replace to install replacement cats. So simple no instructions required.
  • Install for track events circuit events and remove easily for concours or trade in time. 
  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

DISCLAIMER: 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, never to be driven on public roads. 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 (CARB) and not EPA certified. You are hereby informed and warned to check your local, state, and federal 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.

Returns Policy

To RETURN any system, product or merchandise you must contact us first for a Return Authorization (RA) Number. Special order and custom made systems, apparel, Carbon Fiber Wall Art, and other certain merchandise are NOT returnable. ALL SALES ARE FINAL. To return a Fabspeed Motorsport product an RA number must be requested and if granted the item(S) must be in original Fabspeed Motorsport sealed packaging. A copy of the original invoice and a brief explanation must accompany all returned items. You must follow our instructions for returning items carefully, or Fabspeed Motorsport reserves the right to charge a 25% restocking fee on any OPENED box or repackaged products. Customers are responsible for return shipping charges. If an order was shipped with a promotional “Free Shipping”, and the order is returned, we exclusively reserve the right to charge the customer or distributor for the cost of that original shipping and handling. If a Fabspeed Motorsport Performance package is ordered, and an individual component of that package is returned, Fabspeed Motorsport reserves the right to charge back the performance package discount along with any additionally offered discounts. Return shipped items DAMAGED in transit will RESULT in additional charges up to and including rejection of the competent. It is the customer’s responsibility to ship safely and properly. No returns accepted after 30 days from the invoice date. No credits will be given after 30 days from the invoice date.

To qualify for return, the product must be unused and remain in the original packaging, as well as match the current design and packaging for the product at the time of return. Sounds is subjective and therefore does not qualify for a return of a used product. See Sound Solution Guarantee to see if your product is covered.

Periodically mistakes are made when ordering, or a wrong part is shipped, and you may wish to return an item. We will do everything reasonable to satisfy you. Please contact Fabspeed Motorsport immediately via email at to discuss the circumstances before returning any products. Anything returned without prior authorization from Fabspeed Motorsport will be refused. All returns must be sent back fully prepaid. Our customer service department ( will issue a Return Authorization Number, which must accompany any return. A copy of the original invoice and a brief explanation must accompany all returned items. No returns accepted after 30 days from the invoice date. No credits given after 30 days.


Fabspeed Motorsport cannot be held liable for refusal of, delay of, loss of, theft or damage to a shipment of any item. The customer agrees to indemnify Fabspeed Motorsport for all costs, fees and expenses Fabspeed Motorsport incurs as a result of any violation of any local, state, federal, national or international laws or regulations. Customer agrees to take responsibility for lost packages that were not independently insured or sent without requiring signature. The customer understands they will be liable in the event of additional fees, tariffs, or legal issues such as border seizure. Customer accepts these risks and agrees to release Fabspeed Motorsport of all liability.

Fabspeed Motorsport reserves the right to charge a shipping and handling fee on every order being shipped from our facility. This fee is universal and applies to all retail and wholesale purchases and cannot be waived or credited.

A 6% sales tax will be implemented for every purchase made by a Pennsylvania resident. This fee will be charged for in-house installations and products purchased online, over the phone, and/or via email, this fee is required by law, is non-negotiable and non-refundable.

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