DescriptionThis Yoshimura RS-4 exhaust system was designed with one thing in mind, winning races. The RS-4 is a unique design with predicated power and a quiet earthy exhaust note that speaks volumes for performance. It was an obvious choice for the SX-F lineup.
Full System includes RS-4 muffler, stainless steel header and tail-pipe, installation hardware, and detailed instructions.
An AMA-approved sound insert comes installed in the muffler.
Low-Volume Insert and Spark Arrestor Chart