2016-2018 husqvarna fc450, 2017-2018 fx450 -yoshimura signature rs-4 full system stainless/al/carbon, Yoshimura husqvarna off road exhausts, motorcycle, tyres, parts, accessories, Auckland | Cycletreads

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2016-2018 Husqvarna FC450, 2017-2018 FX450 -Yoshimura Signature RS-4 Full System Stainless/Al/Carbon

YM-264610D320 (Signature Series):

Introducing the brand-new RS-4 Full System from Yoshimura R & D of America.

Yoshimura took the time to develop and test in order to deliver the best exhaust system available for the new KTM and Husqvarna 450, and the results were worth the wait. We took everything we have learned over the last several years with our world famous RS-4 muffler and revised it with the latest materials and an updated spec that makes this new model perform.

The performance gains that were realized on this system are nothing short of amazing. The dyno tells us that this new RS-4 system gained 3 horsepower over the stock system plus increased torque throughout the entire RPM range.

It's time to change the exhaust on your KTM or Husky to Yoshimura

*Please note that there is not a carbon fiber option available for this system.


  • Pentagonal-shaped sleeve
  • Front muffler cap functions as a polyresonant chamber which helps reduce noise
  • Two-stage stepped baffle
  • Carbon fiber end-cap
  • Stainless steel header, tail-pipe with aluminum muffler
  • Repack Kits and optional Inserts are available for all models

More Info:

* Stock is not necessarily in store and may be located in the warehouse.
   Please contact us for in-store availability.

Part #DescriptionAvailable OnlineRRPOur PriceOrder
YM-264610D320YOSHI 450SXF 16/18 RS4 FS/SS/Yes *1495.001495.00