Flowmaster Pro Series Muffler - 4" Inlet, 4" Outlet - 8" D x 20" L Case - Aluminized Bump Steer Kit This harness set is a

This harness set is a "pull up lap" design

RPM Air Gap Olds 455

39 x 13 x 4

1965-1991 Avanti II

18 Spline Input Shaft

Flowmaster Pro Series Muffler - 4" Inlet, 4" Outlet - 8" D x 20" L Case - Aluminized Bump Steer Kit This harness set is aThe Flowmaster PRO Series line of racing silencers will make you a believer. Developed with many of the top race engine builders and race teams around the country. The PRO series silencers feature a dramatic reduction of sound over open headers, without sacrificing your hard earned horsepower and torque. Race proven performance that will put you at the front of the pack. . quietly! The Pro Series mufflers work on all applications ranging from street