Hedman Headers - Pontiac 326-455,1964-81 Grand Prix, Le Mans, GTO, Firebird Set 6222180 Primary Stage Opening Vacuum: 9

Primary Stage Opening Vacuum: 9

-Magnetic Pickup

1/4" hex shank suits impact drivers

Take control of your exhaust system's noise level with one of these Flowmaster Hushpower II resonators

air consumption (cfm) : 9

Hedman Headers - Pontiac 326-455,1964-81 Grand Prix, Le Mans, GTO, Firebird Set 6222180 Primary Stage Opening Vacuum: 9HEDMAN Standard Uncoated Headers; 1 5 8 2" Tube Diameter; 3" Coll.; FULL LENGTH Design LONG TUBE design provides ample exhaust flow to let your 326 455 Pontiac engine breathe easy, and produce maximum horsepower and torque. These headers are uncoated, and ship from the factory with a temporary black paint that will burn off when submitted to normal operating temperatures. They are also available with a ceramic metallic finish. Suits 1970 74 Pontiac