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Fabspeed Porsche 991.2 GT2 RS Non-Valved Sport Cats (2018+)

Calculated at Checkout
HP (whp):
TQ (ft/lbs):
WT (lbs) KG.s:
-12 / -5.45

Fabspeed Porsche 991.2 GT2 RS Non-Valved Sport Cats (2018+)


Ready for take off? Yes, Fabspeed Motorsport USA can really truly enhance the Sports car sound and power of the mighty GT2RS. 

Replace the restrictive GT2RS OEM ceramic 700 cell catalytic converters and OEM titanium muffler with free flow HJS German Imported HE EURO 6  tri-metallic race quality 200 cell HD cores that FLOW 92% of a straight pipe.  Fabspeed is the North American South American exclusive importer of HJS Germany emissions systems AG. Fabspeed uses the largest possible HJS 200-cell Sport Cats to increase exhaust flow for better power and throttle response and improved sports car sound. Best of all 100% guaranteed no Check Engine Lights - no tune required. 

Much better enhanced sports car sound and turbo spooling due to free flow catalytic converters. These are the very largest HJS HD German cores that will fit on this car. There is NOTHING bigger or better than the HJS catalytic converter that Fabspeed Motorsport has utilized to give our worldwide GT2RS enthusiasts the very best superlative sports car sound, reliability and power. Beware and do not buy any other brand of catalytic converter.

The above Fabspeed Motorsport GT2 RS high-flow catalytic converter system is the World's very best with (hardware only) gains of 7 Wheel HP and 10 FT/LBS torque (8.5 HP 12ftlb at the engine) of torque with no check engine light. This is the result of design, engineering and the very best imported components. Based on over 30+ years of motorsport design and quality.   

This is an easy installation, a simple bolt-on XXL HJS German imported 200 cell HD European level 6 wash coat catalytic converters.                                                          


  • Fits all Porsche 991.2 GT2 RS vehicles worldwide 2018+
  • Sports Cats come directly off the Left and Right turbochargers and air right out the rear bumper cover. 
  • Eliminates the OEM Titanium muffler, exits straight through the bumper
  • Significant gains of 7 WHP and 10 FT/LBS of torque with no check engine light
  • Competition Sport Cat Race Pipes combined with our proprietary ECU Tune makes over 740HP to the wheels. 850HP to 888HP to the crankshaft on pump gasoline.
  • Incredible increase in turbo/throttle response
  • Constructed from high-quality 14-16 gauge, C.N.C. mandrel bent T304 Stainless Steel
  • Direct replacement bolt-on Extra Extra large HJS German imported 200 cell HD European level 6 wash coat catalytic converters
  • Includes angle cut outlets and slip on 90 degree turn down outlets to aim exhaust to the ground for additional sound control
  • Optimized for maximum performance with NO catalyst generated check engine light, guaranteed
  • Emissions-compliant in 49 states (excludes CA)
  • Simple do it yourself installation
  • Reversible after track events or concours events or trade in time.
  • Just 2 clamps on each side of the GT2 RS need to be removed to upgrade to high-flow catalytic converters.
  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

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.

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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