With its straight through design, the Schoenfeld Insert Muffler will reduce the noise level without excess back pressure. The insert is light weight with nothing to burn out.
No clearance issues with oil filter, spark plugs, starter, kick out oil pan, rear mounts, valve cover. Clears firewall that is minimum 7" from back of block. 1 5/8 Primary. 8" long x 3" Dia collector.
These products are for racing and off-road applications. NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only.
All extensions are expanded on one end2 1/2", 3", 3 1/2"...