Flowmaster FlowFX Stainless Muffler - 2-1/2 in Side Inlet - Dual Offset 3 in Outlet - 24 in Long 601-27S-WR Tough Pump 500

Tough Pump 500

one for small-port cast iron factory heads and one for factory large port or with our Performer RPM W-series heads number 60809 or number 60819

Mercury C4 and C6 (Rev pattern) and Chrysler/AMC A727 (36RH/37RH)

High Fidelity true stereo

Cooler is rated at 250psi working pressure and 300psi burst strength

Flowmaster FlowFX Stainless Muffler - 2-1/2 in Side Inlet - Dual Offset 3 in Outlet - 24 in Long 601-27S-WR Tough Pump 500Product Description: Muffler FlowFX 2. 5 in Front Inlet Dual 2. 5 in Outlets 18 x 9 x 4 in Oval Body 24 in Long Stainless Natural Universal 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