All Dasa exhaust systems for the Honda TRX450 are handmade here in the USA and the quality really shows with perfect tig welds, trick billet end caps, a billet canister mount, thick head pipe flange and the end caps do unbolt for easy canister repacking. The Dasa exhaust system has been proven on the dyno to make big HP throughout the entire power curve. This is a multi-step, stainless steel exhaust system that includes a head pipe, mid pipe, and an exhaust canister. This exhaust system has countless national motocross victories, four stroke wars wins, AMA and ATVA championships.