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We are the nation's largest retailer of motorcycle apparel, parts and accessories, serving Off-Road, Adventure, Sport, Cruiser, Touring and Scooter riders
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Yoshimura RS-4 Slip-On Exhaust Yamaha WR450F / YZ450F / YZ450FX The Yoshimura RS-4 Slip-On exhaust has been put to the test and has proven its capabilities at the highest level of competition. In 2010 the RS-4 muffler helped Ryan Dungey claim the AMA 450 Supercross and Motocross championships in his rookie season. The Yoshimura-backed GEICO Honda team also took home both East and West Coast Supercross Lites titles in 2012 using the Yoshimura RS-4 exhaust. Utilizing the same R&D that helped bring success at the national level has resulted in a unique exhaust design that provides an unrivaled combination of power and quiet exhaust note. The Yoshimura RS-4 Pipe features an innovative carbon cone end cap
