Click to enlargeCRF250L Yoshimura RS-4 Slip-On Muffler

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The Yoshimura RS-4 Muffler 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 Yoshi's 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, they embossed the Yoshimura "347" logo in the carbon for a clean look. A heat-shield was also added to the poly-resonant chamber to keep rider and passenger legs from exhaust heat. With all its benefits in mind, the RS-4 was an obvious choice for the CRF250L and CRF250L Rally.

  • 2013-2016 Honda CRF250L
  • 2017+ Honda CRF250L and Rally

    Here's What You Get...
  • Yoshimura RS-4 Muffler with turned-out end cap
  • Carbon Fiber heat shield (only for 2013-2016 model years)
  • Low volume insert
  • All installation hardware
  • Step-by-step instructions
  • Yoshimura Part #123502D521 (2013-2016 CRF250L)
  • Yoshimura Part #123402D520 (2017+ CRF250L / Rally)

    ** OPTIONAL: Spark Arrestor Kit (adds $35 to package price):
  • Choose this option if you want Yoshimura's USFS Approved Spark Arrestor with your exhaust. Kit Includes Spark Arrestor Insert, End-cap collar, and set screw. Yoshimura Part #SA-13-K.

    ** OUT OF STOCK - Other Exhaust Systems To Consider:

  • CRF250L FMF PowerCore4 Performance Exhaust Package
  • CRF250L FMF Q4 Performance Exhaust Package
  • CRF250L Rally FMF PowerCore4 Performance Exhaust Package
  • CRF250L Rally FMF Q4 Performance Exhaust Package

    CRF250L / Rally Yoshimura RS-4 Slip-On Muffler
    YOSH-123x02D52xRetail Price: $469.00Our Price: $422.10
    Bike Model Year: 
    Spark Arrestor Kit: 

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