Race Headers are for all out combinations. Designed for use with chassis cars or heavily modified stock frames. 2-1/4” primaries, 4” collectors. Multi piece header design. Use for 800+ HP Race combinations.

• Note: Full length headers may not align correctly with the humps in transmission cross members of some full sized cars. 

• Note: Most Header installs require re-routing of the transmission lines on the passenger side.

With Air refers to cars that have an air conditioning box on the firewall. With Out Air refers to cars that never had A/C or the box has been  removed. Also use With Air headers on combinations were the engine was moved farther back in the engine compartment.