Schoenfeld Insert Muffler - 3.5" Core Fits 4" Collector Radiator Hose Clamp There is zero dish and

There is zero dish and the diameter is 270mm

1993-1999 GMC P3500

a hydraulic clutch system using a hydraulic throw out bearing

1 1/8" Rear Swaybar

Schoenfeld Insert Muffler - 3.5" Core Fits 4" Collector Radiator Hose Clamp There is zero dish andWith its straight through design, the Schoenfeld Insert Muffler will reduce the noise level without excess back pressure. The insertis light weight with nothing to burn out. Started in 1974, Schoenfeld is known for custom fabricated headers for all forms of circle track racing. Schoenfeld Headers is the worlds largest manufacturer of circle track headers, but they specialize in a variety of high quality exhaust parts, including turn downs, extensions,