Exhaust Muffler Kit-Stainless Exhaust Dinan D660-0049-BLK fuel-caps 6 V8 1975 - 1976

6 V8 1975 - 1976 GMC G25 Rally STX 350/5

5L engine is perfect for the person looking for an moderately-aggressive exterior sound level while maintaining a moderate interior tone with all of the performance benefits that you would expect from Flowmaster

7 V8 1977 - 1979 Chevrolet K10 400/6

A handy parts guide is affixed to the inside case cover

P/N 12-846 Adjustable from 40-70psi with manifold reference

Exhaust Muffler Kit-Stainless Exhaust Dinan D660-0049-BLK fuel-caps 6 V8 1975 - 1976Overview: Dinan's Free Flow Axle Back exhaust system features 100% stainless steel construction measured to exact specifications to ensure proper fit via factory hangers and mounting points. Dyno tuned for maximum exhaust flow with minimum backpressure, this system is designed to provide a more aggressive sound under acceleration while reducing drone inside the vehicle, thanks to Dinan's exclusive Helmholtz Chamber and Butterfly Valve technologies.