Featuring 1-3/4" primary tubes, 3" lead pipes, and a high-flow catalytic converter, this system is optimized to improve exhaust flow, reduce backpressure, and support better engine efficiency—without introducing unwanted noise or harshness. The 5/8" thick header flanges provide exceptional durability and a dependable seal, even under high-heat conditions. Designed to integrate with the factory exhaust system, this kit may require minor trimming at the OEM connection flange.