K-Tuned 409 Series 4-1 K-Swap Race Header - 88-00 Civic / 94-01 Integra

The K-Tuned Race Header offers a proven 4-1 design with a true slip-fit merge collector for maximum exhaust flow. The Race header is designed to deliver power gains in the upper RPM range, making it perfect for drag racing and street use. Like K-Tuned's other headers, it fits perfectly under shifter mounting kits and is well centered in the exhaust tunnel. The flex-pipe absorbs engine movement, and the optional flange allows installation to existing exhaust piping with minimal modification. Please note that all of K-Tuned's headers will require some exhaust welding for installation. WHY CHOOSE 409 STEEL? After evaluating the price driven exhaust parts market and seeing some of K-Tuned's products copied using very low quality, thin gauge Asian mystery material, they decided it was time to make a move. K-Tuned 409 Series Headers are made with raw 409 series steel which will offer customers a cost savings with no sacrifice to performance and fitment. They wanted to maintain a high level o