4-1 HEADER

4-1 HEADER. 4-1 HEADER Popular with the racing crowd, but engineered with mid-range power No need to redline engine to make power with this header! Features lightened CNC-machined flanges and mandrel-bent tubing. True trapezoidal merge collector is more efficient at scavenging exhaust gases than a standard swaged collector. Ends of the primaries are precisely mitered to join together and form a smooth transition. This merge allows exhaust gases to flow freely into the collector without turbulence. Trapezoidal merge also allows top tubes to be offset from the bottom to increase ground clearance.

$203.99