Skunk2ís MegaPower Header is designed and engineered to maximize exhaust flow and increase both horsepower and torque throughout the powerband. The unique design is the result of more than a decade of racing experience coupled with computerized modeling and extensive dyno testing. Each Skunk2 MegaPower 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-inch outlet. These features, paired with Skunk2ís unique design specs, provide an extremely broad powerband thatís 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 tubesí diameter, Skunk2 is able to maintain the highest possible exhaust gas speed throughout the header, which improves mid-range power and throttle response significantly. Skunk2ís MegaPower Header provides the perfect combination of top-end power without sacrificing mid-range power or throttle response.