Skunk2 is proud to announce its all-new Alpha Series Header for the 2012-up Civic Si. Patterned after their already popular and dyno-proven MegaPower Headers, Skunk2's Alpha Series Header employs many of the same design characteristics and technology. Their decision to produce the Alpha Series Header was driven by a desire to make their race-proven design more affordable and accessible to everyday enthusiasts. New manufacturing techniques allow it to be done at a lower overall cost, making race-winning header technology available to everyone. Skunk2's Alpha Series Header for the Civic Si offers Skunk2 performance at a price comparable to lesser budget-minded headers. Unlike the budget-minded headers, though, only Skunk2 Alpha Series Headers ensure precise fitment. All Skunk2 headers are 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. Skunk2 is able to maintain the highest possible exhaust gas speed throughout the header, which improves mid-range power and throttle response significantly. Further performance is gained by deleting the factory catalytic converter! Skunk2's Alpha Series Header provides the perfect combination of top-end power without sacrificing mid-range performance or throttle response.
arge 4 inch Bellmouth Design Manufactured from High Quality Cast Stainless Steel
Race application; eliminates catalytic converter.
Defouler included in kit
Honda Civic Si 2012-2014