Flowmaster Pro Series Muffler w/ Turndown - 3.5" Inlet, 3.5" Outlet - 6" D x 16" L - Aluminized 111012 Valve Stem Seals

Valve Stem Seals

That's why the fastener experts at ARP have developed special bolts that are far superior to OEM hardware

1977-1990 Chevrolet G20

With MID Sleeves

Flowmaster Pro Series Muffler w/ Turndown - 3.5" Inlet, 3.5" Outlet - 6" D x 16" L - Aluminized 111012 Valve Stem SealsThe 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 new Pro Series line of mufflers are designed to deliver