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Fabspeed Porsche 964 Carrera Secondary Muffler Bypass Pipe (1989-1994)

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Fabspeed Porsche 964 Carrera Secondary Muffler Bypass Pipe (1989-1994)


Reduces weight by 25 pounds 11.40 KG, increases power, and improves sound by replacing the heavy and restrictive secondary muffler with a straight-through pipe. Porsche Motorsport actually developed this part for the 964 Carrera CUP cars that ran from 1990 to 1993.                                


  • Fits all Porsche 964 Carrera vehicles. C4, C4, Carrera RS, Carrera CUP cars from 1989-1994.
  • Increases power and improves throttle response
  • CAT-BACK emissions legal. 
  • Removes a huge amount of weight from the Right Rear corner of the car. 
  • Factory Porsche AG CUP car replica pipe. Factory pipe NO LOnger available was $2100 or 700 DM. 
  • Simple direct replacement mandrel bent 3.0" 76mm Tig welded stainless steel tubing. Reuse factory 964 donuts and clamps to install. 
  • Constructed from high-quality 14-16ga CNC mandrel-bent T304L stainless steel for optimum flow and maximum durability
  • Direct replacement for the OEM  964 secondary muffler and 965 C2 Turbo 2ndary muffler. 
  • Designed over 30 years ago by Fabspeed Motorsport craftmen. Continually improved since then!
  • Sound solutions warranty not applicable for this simple performance part.  
  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

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.


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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.