Specially developed for use in motocross Silencer housing made of high-grade aluminum Stainless steel silencer cap Rich sound Low noise level Permanently welded brackets Easy to mount Perfect fit Reduced weight For a system with optimized performance and perfect balance we recommend the combination with the FMF Fatty expansion chamber. APPROVALS: CCCUO   MATERIAL: Aluminum SURFACE: Anodized   COLOR: Black   FITMENT 2016-2023 KTM 65 SX KTM P/N: 46305979100 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.