Skunk2 MegaPower Header: 06+ Honda Civic Si
The Skunk2 MegaPower
Header is designed and engineered to maximize exhaust
flow and increase both horsepower and torque throughout the entire RPM powerband. Our unique design ... over 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 ... Details...