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Parts that are not instock will have to be ordered in by emailing or contacting us*


Features of the Yoshimura RS-4 Exhaust:

The 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 350 SX-F.

Comp Series Slip-Ons include an RS4 muffler, stainless steel tail pipe, USFS approved spark arrester, all necessary hardware, and detailed installation instructions to get you moving.


  • 2012-2015 500 EXC (when license plate and turn signals are removed)
  • 2012-2015 500 XC-W
  • 2011-2015 450 SX-F
  • 2013-2015 450 XC-F
  • 2012-2015 450 XC-W
  • 2011-2015 350 EXC-F (when license plate and turn signals are removed)
  • 2011-2015 350 SX-F
  • 2014-2015 350 XC-F
  • 2011-2015 250 SX-F


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