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Product image 1KTM 450SX-F / Husqvarna FC450/FX450 2016-18 Signature RS-4 FS SS-AL-CF
Product image 2KTM 450SX-F / Husqvarna FC450/FX450 2016-18 Signature RS-4 FS SS-AL-CF
Product image 3KTM 450SX-F / Husqvarna FC450/FX450 2016-18 Signature RS-4 FS SS-AL-CF
Product image 4KTM 450SX-F / Husqvarna FC450/FX450 2016-18 Signature RS-4 FS SS-AL-CF
Product image 5KTM 450SX-F / Husqvarna FC450/FX450 2016-18 Signature RS-4 FS SS-AL-CF
Product image 6KTM 450SX-F / Husqvarna FC450/FX450 2016-18 Signature RS-4 FS SS-AL-CF
Product image 7KTM 450SX-F / Husqvarna FC450/FX450 2016-18 Signature RS-4 FS SS-AL-CF
Product image 8KTM 450SX-F / Husqvarna FC450/FX450 2016-18 Signature RS-4 FS SS-AL-CF

*Product may vary by application

KTM 450SX-F / Husqvarna FC450/FX450 2016-18 Signature RS-4 FS SS-AL-CF

SKU: 264610D320

Regular price $652.63

MADE IN USA

Signature Series Exhaust System


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over $75.00

1-Year
Warranty

Repair Services
Available


Emissions Compliance Declaration: QUALIFIED MANUFACTURER DECLARED "REPLACEMENT PART"


WARNING: Cancer and Reproductive harm - www.p65warnings.com


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
Instructions and Parts Diagram
Instructions / Parts Diagram

Signature Series Exhaust System

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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.

Vehicle Fitment

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  • Husqvarna FC450 2016
  • Husqvarna FC450 2018
  • 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
  • Reviews

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