Fabspeed Porsche 964 Carrera Secondary Muffler Bypass Pipe (1989-1994) - FS.POR.964.SMB painted Tuned = 577 HP /

Tuned = 577 HP / 589TQ

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Fabspeed Porsche 964 Carrera Secondary Muffler Bypass Pipe (1989-1994) - FS.POR.964.SMB painted Tuned = 577 HP /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. FEATURES 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