DescriptionThis exhaust was designed with one thing in mind, winning races! The RS-4 is a unique design with predicated power, a side benefit of a quiet earthy exhaust note that speaks volumes for performance. It was an obvious choice for the KX250F.
Full System includes RS-4 muffler, titanium header and tail-pipe, installation hardware, and detailed step-by-step instructions. Titanium systems come with an AMA sound insert installed in the muffler.
Low-Volume Insert and Spark Arrestor Chart