Porsche Primary Muffler Bypass Pipe - 911 | 1989-1994 FS-POR-964-PMB 99650436400 A rough running engine or

A rough running engine or poor starting behavior are a common sign of worn seals and components

991044803528YR For Porsche 911 (1965-1989)

Porsche Galvano Silver Seat Release Actuator Button (Left) For Porsche 911 (2005-2013)

Injector cylinder 6

Porsche Rear Window Glass For Porsche 993 (1995-1998) Models

Porsche Primary Muffler Bypass Pipe - 911 | 1989-1994 FS-POR-964-PMB 99650436400 A rough running engine orPorsche Primary Muffler Bypass Pipe For Porsche 964 Carrera (1989 1994) Models. Fabspeed Primary Muffler Bypass Pipe This straight through pipe directly replaces the heavy and restrictive factory Porsche OEM primary CENTER muffler with a Porsche Motorsports Carrera CUP style design. This CUP primary muffler bypass pipe significantly enhances sports car sound, noticeably increases horsepower, and reduces weight from an ideal location at the rear of the