Unleash maximum power! Our TRX450R (CRF hybrid engine) Complete Exhaust will take you to the next level. Feel the thrill of superior performance and push your limits with every ride. The Race winning RP Race exhaust for your TRX450R! Features This complete exhaust system is constructed with premium stainless steel. TIG welded for maximum durability. It is specifically designed for engines with modifications. Air Fuel tuning is highly recommended for optimal performance. The Tubing step and size is carefully designed for maximum power output. Big 2.25'' core. Available in shorty (12'') or regular (16'') silencer. 98db noise rating for the regular length. The silencer is packed with high-quality material and features a special high temperature core. It has been proven on the dyno and approved for track use. A high-quality stickers sheet is included. Upgrade now for the ultimate experience!