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Porsche 964 Carrera European Pre-Muffler Cat Bypass Pipe (1989-1994)

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15.00 LBS
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Porsche 964 Carrera European Pre-Muffler Cat Bypass Pipe (1989-1994)


Replace your ancient 964 factory catalytic converter with a straight-thru resonated pipe resulting in more horsepower, improved throttle response and throaty gutsy sports car sound.


The straight through design of this cat-bypass pipe means you'll get a much louder throatier sound from your 964. However, because it is resonated it you won't experience any rasp or harsh tones. 


On our DynoJet we saw significant power gains across the RPM range. Increases horsepower and torque by 16 whp and 14 ft-lbs  


  • Fits all Porsche 964 C2, C4, RS America, Euro RS and Speedster vehicles worldwide 1989-1994
  • Increases horsepower and torque by 16 whp and 14 ft-lbs greatly improving throttle response
  • Constructed from 14-16 gauge, T304L C.N.C mandrel bent stainless steel
  • Straight-through resonator with stainless steel wool packing so it will never burn out
  • Includes intergrated O2 sensor bung for air/fuel ratio management
  • Simple DIY bolt-on installation 5 pieces of hardware to be removed and replaced
  • LOOKS like a catalytic converter and absorbs sound so car is not too loud
  • A exact replica of the European racing part for certain world markets
  • Constructed from mandrel bent T304L stainless steel
  • 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. 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.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.