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DescriptionThe RS-4 is a unique design with predicated power and a
quiet earthy exhaust note that speaks volumes for performance. This RS-4
features all the benefits of our original RS-4 muffler, but with a
unique turned-out end-cap,
designed to direct exhaust heat and gases away from the bike's
components. To top-it-off, we embossed our Yoshimura's "347" logo in the
carbon for a clean look. With all its benefits in mind, the RS-4 was
an
obvious choice for the WR450F.
Full System
includes an RS-4 muffler, stainless steel header and tail-pipe, USFS
approved spark arrester, all installation hardware, and step-by-step instructions.
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