Hooker Maximum Flow Muffler H753C4259 8-Point Main Hoop for 1970-81

8-Point Main Hoop for 1970-81 F-Body

Pickup Included

5" Hg / #HLY125-75 - Opening Vacuum 7

2002-2002 GMC Envoy

Hooker Maximum Flow Muffler H753C4259 8-Point Main Hoop for 1970-81Hooker Headers Maximum Flow Muffler 21602HKR Universal Bi Directional Turbo Style Black Finish 4. 75 in. H x 10. 25 in. W x 14 in. L 2. 5 in. ID 2. 5 in. OD Offset Inlet Single Center Outlet Flows 99 percent More Horsepower And Torque Aluminized And Stainless Steel High Temp Packing Material Absorbs Excessive Noise Mellow Powerful Sound Flows Either Direction Easy Installation Hooker holds to its claim of the winningest header in drag racing history.