Jackson Racing's newest header design is now 50 state legal! Meticulously built from 14 gauge mandrel bent tubing, our headers incorporate wide, soft radius bends and merged collectors for maximum flow. All flanges are CNC machined, not flame cut, from high grade 1018 steel. Each header is then coated with aircraft quality ceramic coating which will not burn off or peel. This ceramic coating, combined with our 14 gauge steel tubing keeps heat where it belongs ­ in the header, not in your engine compartment. Smog Legal in all 50 States! ughout with thick, flame-cut flanges for positive gas sealing.