Twisted Steel header delivers more horsepower and torque while outflowing the factory exhaust manifold. The header is constructed of 14-gauge 409 SS tubing with a 1/2” thick head flange to ensure a leak free seal. To eliminate dead space that can cause turbulence and hindering flow that formed collectors are prone to produce, a true merged collector and optimized tube lengths are used for true pulse control technology improving flow and performance. 100% hand TIG-welded construction ensures optimal strength and durability.