Hooker Super Competition Headers - 2 in Primary - 3.5 in Collector - Black Paint - Big Block Chevy - GM A-Body / F-Body 1968-81 - Pair YA0817 1988-1994 GMC G3500

1988-1994 GMC G3500

Max Dyno Gains of 18 hp and 21 lb

94 lb/in Spring Rate

300 in Rectangle Port

Symmetrical design makes multiple configurations possible

Hooker Super Competition Headers - 2 in Primary - 3.5 in Collector - Black Paint - Big Block Chevy - GM A-Body / F-Body 1968-81 - Pair YA0817 1988-1994 GMC G3500Hooker Headers Super Comp Header 2217HKR Black Finish Full Length Chevy Engine 396 502 Tube 2 in. x 35 in. OD Coll Size 3. 5 in. OD Coll Length 10 in. Same As Port Long Tube Lengths Long Transition Collectors Monstrous Low Mid Range Torque Keep Top End Horsepower Provides Finest Fit Most Durable Design Available Vehicle Applications: 1970 1972 Chevrolet Camaro 1973 1974 Pontiac Firebird 1971 1974 GMC Sprint 1973 1974 Chevrolet Malibu 1968 1975