YOSHIMURA 17-19 450/500/501 SLIP ON
YOSHIMURA 17-19 450/500/501 SLIP ON
YOSHIMURA 17-19 450/500/501 SLIP ON
YOSHIMURA 17-19 450/500/501 SLIP ON

YOSHIMURA 17-19 450/500/501 SLIP ON

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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.

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

NOTE: *500EXC-F stock turn signals must be relocated as the muffler outlet is in the direct line of the turn signal.

  • 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 tail-pipe with aluminum muffler
  • Repack Kits, optional Spark Arrestors and Inserts are available for all models

This product was designed to fit on a standard equipped motorcycle, as delivered from the factory. OE and Aftermarket accessories not found on a bike as delivered from the factory, may not be compatible with this product.

Attention International Customers: This product was designed and tested to be compatible with vehicles in the U.S. marketplace only. Compatibility including fitment and performance may vary by marketplace.


  • Husqvarna FC450 2016
  • Husqvarna FC450 2018
  • Husqvarna FE501 2017
  • Husqvarna FE501 2018
  • Husqvarna FE501 2019
  • Husqvarna FX450 2017
  • Husqvarna FX450 2018
  • KTM 450SX F 2016
  • KTM 450SX F 2017
  • KTM 450SX F 2018
  • KTM 450XC F 2017
  • KTM 450XC F 2018
  • KTM 500EXC F 2017
  • KTM 500EXC F 2018
  • KTM 500EXC F 2019

    Sound levels at idle speed tested at 1' above and 1' behind each
    muffler on the same 21' 500 EXCF tested back to back.

    Stock muffler 82
    Stock w Pro Moto end cap / ultra silent insert 85
    Stock w Pro Moto end cap / silent insert 86
    Stock w Pro Moto end cap 88

    Graves Motorsports w db killer 85
    Graves Motorsports 89

    Fmf q4 84
    Fmf 4.1 88
    Fmf power core 88

    Lexx w db killer 86
    Lexx w spark arrestor insert 87
    Lexx 89

    Akropovic 85