Description
The RS-4 muffler was developed in conjunction with the Rockstar Makita Suzuki Yoshimura race team with one purpose in mind: winning championships. That goal was accomplished during the 2010 AMA Supercross and Motocross season when Ryan Dungey and his Yoshimura-powered RM-Z450 took the motocross world by storm as the first rookie in the history of the sport to dominate both series. The RS-4 is a unique design with predicated power, a side benefit of a quiet earthy exhaust note that speaks volumes for performance, and offers increased horsepower and torque. RS-4 systems are the choice of both the Factory Honda and Suzuki teams.
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