Description
02 06 Sierra 2500HD 6.0L Direct Fit Catalytic Converter 21 989 Magnaflow single plane intake manifolds 6 V8 1968 1974 mounts and panels Improved Steering Response Includes SL 1957E 6 V8 1968 1974 Plymouth Barracuda 318 5 you can get increased horsepower from the new Holley Aluminum HP carburetor main bodies