Skunk2's engineers wanted to offer the same custom racing headers they use on the company's own championship racing cars to enthusiasts at a good value, but without compromising quality. In a class where competitors are not allowed to modify intakes and throttle bodies, the header and exhaust system become the keys to finding additional power. Skunk2's MegaPower Header is designed and engineered to maximize exhaust flow and increase both horsepower and torque throughout the power band. The unique design is the result of more than a decade of racing experience coupled with computerized modeling and extensive dyno testing. Each header features equal-length, sequentially paired, stepped primaries and a 4-2-1 tri-Y design that terminates into a collector with a 2.5" outlet. These features, paired with Skunk2's unique design specs, provide an extremely broad power band that's applicable to a wide range of engine sizes and configurations. MegaPower Headers also feature the smallest possible primary tubes required to achieve optimum overall and peak power. By minimizing the primary tubes' diameter, Skunk2 is able to maintain the highest possible exhaust gas speed throughout the header, which improves mid-range power and throttle response significantly. The MegaPower header provides the perfect combination of top-end power without sacrificing mid-range power or throttle response. Each MegaPower header's finish, weld consistency and color, and fitment remains unparalleled. MegaPower Headers are welded after being polished so users can see each weld's quality and color. Other manufacturers polish their welds to disguise the oxidation that results from improper welding temperatures and poor gas shielding. Skunk2 headers are also back-purged and welded by expert craftsmen. Each header is constructed from T-304 stainless steel with fully polished, mandrel-bent tubing and a CNC-machined flange for added strength and durability.