Yoshimura's 264612D322 Signature RS-4 Slip-on Exhaust, SS-AL-CF(Stainless Steel, Aluminum, Carbon Fiber) is made specifically for KTM 450SX-F / 500EXC-F / Husqvarna FC450 / FX450 (2016-current).
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.
- 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
Introducing Signature Series by Yoshimura - an offering of exhaust systems that a dealer can install with confidence. Our Signature Series lineup is the answer for today's dealer who is faced with a challenging marketplace. The applications for the Signature Series line cover the entire powersports spectrum, including many of our off-road applications. Everyone of our Championship Winning Motocross exhaust systems and nearly all of out ATV/Side-by-Side applications are all members of the Signature Series Family. All Signature Series components are tested, documented, and marked as required by federal and state regulations.
Note: 500EXC-F stock turn signals must be relocated as the muffler outlet is in the direct line of the turn signal.
Note: Does not meet CARB (California Air Resources Board) emissions standards. For "Competition" use only
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