Flowmaster Stainless Header-Back Exhaust System - 2-1/2 in Diameter - GM B-Body 1959-64 4125CLGBU Requires 6 in

Requires 6 in

1964-1969 Ford GT40

Efficient copper/aluminum 4 & 4 pass cooler core

Choke Tower

Flowmaster Stainless Header-Back Exhaust System - 2-1/2 in Diameter - GM B-Body 1959-64 4125CLGBU Requires 6 inProduct Description: Exhaust System Header Back 2. 5 in Diameter Stainless Natural GM B Body 1959 64 In 1983 California Sprint Car racers were experiencing 'excessive sound' issues and were told to quiet the cars down or stop racing. Flowmaster founder Ray Flugger created Flowmaster's first patented design of racing mufflers. Ray attached handles to ease carrying the race mufflers, and the mufflers became known as the "suitcase muffler. Today