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

A straight pipe replaces the heavy and restrictive factory Porsche OEM primary CENTER muffler and  with a Porsche Motorsports Carrera CUP style straight pipe. The CUP primary muffler bypass pipes 100% improves sports car sound,  significantly increases horsepower and redeuces weight from the best area to remove weight RIGHT behind the license plate. SOUND: All Porsche 964 coupes and cabriolets will be sportier and have a more aggressive Flat-Six sports car sound  than the stock muffler.  With the stock OEM Porsche 964 catalytic converter , a Primary muffler bypass pipe installed and the Stock 964 2ndary side rear muffler the car is 100% daily driveable BUT sporty flat six sound. A great additional upgrade is our 964 CUP aluminum airbox coverlid piece.  POWER: DYNO verified from Porsche and Fabspeed +12.5HP and 10 wheel horsepower - real world seat of your pants gain from this muffler bypass pipe system.  FEATURES: Fits all Porsche 964 C2, C4, RS America, Euro RS and Speedster vehicles