Long Tube Headers for 70-81 Firebird 326-455 1-3/4in Primary Ceramic Coated D570 Crown 6 V8 1968 GMC G15/G1500

6 V8 1968 GMC G15/G1500 Van 307/5 V8 1967 GMC G25/G2500 Van 283/4

Dodge Challenger (2008-2010)

or additional hardware for final installation

power gains of 14 HP and 23 LB

Long Tube Headers for 70-81 Firebird 326-455 1-3/4in Primary Ceramic Coated D570 Crown 6 V8 1968 GMC G15/G1500Overview: 70 81 Firebird 326 455 Long Tube Slvr Ctd Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest quality header on the market. Features: 3 8" Thick machined flanges to prevent warping Precision formed long transition collectors and long tube design reduces