Yoshimura RS-9 Signature Series Full Exhaust System

Item Number: 339285


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Product Description


Yoshimura RS-9 Signature Series Full Exhaust System

Yoshimura Signature Series exhaust components are the answer for riders faced with ever-tightening noise and emissions regulations at the federal level. All Signature Series components are independently tested, documented, and marked as required by state and federal regulations as CARB/EPA-compliant.

Yoshimura's dual RS-9 muffler profile has been proven to be the perfect choice on the track for riders demanding maximum performance from their machines. A significant improvement over the OEM exhaust, the dual exhaust full system reduces weight, increases power and looks good at the same time. The RS-9 muffler's unique carbon fiber end-caps feature a tunable insert system, so you can fine-tune power delivery and decibel levels to your exacting needs. The parallelogram-shaped exhaust sleeve increases internal muffler volume which produces better noise cancellation and improved throttle response. A vertical tail-pipe divider splits the exhaust gases more evenly than stock for smoother gas flow which improves mid to top-end power and throttle response. As for the looks, the exhaust not only compliments your bike's size and styling, it also significantly reduces exhaust weight.

  • Dual parallelogram-shaped mufflers
  • Increased muffler volume over stock system, resulting in better throttle response and improved noise cancellation
  • Light-weight muffler construction with carbon fiber end-cap
  • CNC machined muffler bracket
  • CNC mandrel-bent header, Y-pipe and tail pipes
  • Includes all required hardware and installation instructions
  • Significantly lighter than the OEM exhaust system
  • 80dB EPA noise emissions compliant

Spec Details
CARB Approved Yes
Country of Origin USA
Header Construction Varies (make selection above)
Muffler End Cap Carbon Fiber
Muffler Sleeve Varies (make selection above)
USFS Spark Arrestor No

Vehicle Fitment

Fitment is guaranteed or your money back plus free return shipping. 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.


  • CRF250R 2014-2016
  • CRF450R 2013-2016

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