Increased tightening torque Increased performance More usable speed range More balanced engine break (drag torque)Better power delivery Improved handling overall due to finer dosing capacity on the throttle grip Sensitive response Rich sound Increased grip due to refined running of the engine Manifold routing optimally adapted to the production engine Stainless steel header Silencer housing made of high-grade titanium Complies with current FIM noise regulations Complies with current AMA noise regulations MATERIAL: Stainless steel, Titanium USED BY FACTORY RACING   FITMENT: 2020-2023 HUSQVARNA FE 450 2023 HUSQVARNA FE 450 Heritage HUSQVARNA P/N: 26205901044 Please ensure fitment prior to purchase. If you have questions, please contact the seller. Not responsible for improper or ill fitment due to incorrect year, make & model given by buyer upon purchase.