DynoMax Header-Back Exhaust Pipe Kit - 2-1/4 in Pipe Diameter - GM Fullsize Truck 1973-87 89004 Mobil 1 you want to know that

you want to know that you're getting everything that you need to complete the installation

Rears with "Max" option include the substitution of a black thermal coated housing

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DynoMax Header-Back Exhaust Pipe Kit - 2-1/4 in Pipe Diameter - GM Fullsize Truck 1973-87 89004 Mobil 1 you want to know thatDynoMax Header Dual Kit 89004 2. 25 in. Tube Size Includes Reducers Exhaust Pipes 16 Ga. Tail Pipe w Side Exits Hardware Does Not Includes Mufflers Designed To Perform w DynoMax Headers Or Stock Man Special Design For A Variety Of Mounting Options Extra Long 16 gauge Tailpipe Give your vintage vehicle's exhaust system an upgrade with a DynoMax dual header kit. Designed to attach to headers, it features a special reducer that allows for a variety of