Product image 1KAWASAKI KX450F 2016-18 Signature RS-4E FS SS-AL-CF
Product image 2KAWASAKI KX450F 2016-18 Signature RS-4E FS SS-AL-CF
Product image 3KAWASAKI KX450F 2016-18 Signature RS-4E FS SS-AL-CF
Product image 4KAWASAKI KX450F 2016-18 Signature RS-4E FS SS-AL-CF
Product image 5KAWASAKI KX450F 2016-18 Signature RS-4E FS SS-AL-CF
Product image 6KAWASAKI KX450F 2016-18 Signature RS-4E FS SS-AL-CF

*Product may vary by application

KAWASAKI KX450F 2016-18 Signature RS-4E FS SS-AL-CF

SKU: 244710D321

Regular price $684.20


Signature Series Exhaust System


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over $75.00


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Introducing Yoshimura RS-4E Signature Series racing systems, a racing system that is designed to meet the extreme sound restrictions worldwide. These new systems have been developed for improved durability between service intervals due to a new internal configuration. The new configuration of the components provides improved sound/noise control for FIM's stringent regulations in world competition over its legendary RS-4 counterpart. Proven from the sands of Lommel, Belgium to the factory Supercross tracks in Southern California.

  • Unique internal muffler configuration enables system to meet FIM noise regulations
  • Longer durability between service cycles
  • Pentagonal-shaped sleeve
  • CNC machined muffler bracket
  • Front muffler cap functions as a polyresonant chamber which helps reduce noise
  • Aluminum canister with carbon fiber end-cap
  • Stainless steel header and tail-pipe
  • Repack Kits, optional Inserts and Spark Arresters 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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  • Kawasaki KX450F 2016
  • Kawasaki KX450F 2017
  • Kawasaki KX450F 2018
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