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Yoshimura RS-4 Enduro Series Slip-On Exhaust
All Yoshimura Enduro Series exhaust components are equipped with USFS-approved spark arrestor, have forest-friendly noise levels, and are tailpipe emissions compliant.
The work that went into developing the RS-4 muffler design paid big dividends during development in AMA Pro Racing. That research was directed at developing the RS-4's unique design that provides an unrivaled combination of power and a quiet exhaust note. The RS-4 muffler features a polyresonant duplex chamber, a two-staged stepped baffle and an innovative carbon cone end cap.
Front muffler cap functions as a polyresonant chamber to reduce noise
Two-stage stepped baffle
Carbon fiber end-cap
Includes all required hardware and installation instructions
Fitment is guaranteed or your money back plus free return
Don't waste time installing a product that doesn't fit. We
worked hard ensuring that this product is an exact fit on the
vehicles listed below.
250 SX-F 2011-2014
350 EXC-F 2012-2015
350 SX-F 2011-2015
350 XC-F 2014-2015
450 SX-F 2011-2015
450 SX-F Factory Edition 2012
450 XC-F 2013-2015
450 XC-W 2012-2015
500 EXC 2012-2015
500 XC-W 2012-2015
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