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Product image 1KX450F 19-23 RS-4 Stainless Slip-On Exhaust, w/ Aluminum Muffler
Product image 2KX450F 19-23 RS-4 Stainless Slip-On Exhaust, w/ Aluminum Muffler
Product image 3KX450F 19-23 RS-4 Stainless Slip-On Exhaust, w/ Aluminum Muffler
Product image 4KX450F 19-23 RS-4 Stainless Slip-On Exhaust, w/ Aluminum Muffler

*Product may vary by application

KX450F 19-23 RS-4 Stainless Slip-On Exhaust, w/ Aluminum Muffler

SKU: 244722D320


Regular price $569.00

MADE IN USA

Signature Series Exhaust System


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Same day shipping on In Stock items placed Mon-Fri by 1:00 pm PST. Please contact sales@yoshimura-rd.com for ETA's on Reserve Now / Pre-Order Items.


Emissions Compliance Declaration: QUALIFIED MANUFACTURER DECLARED "REPLACEMENT PART"


WARNING: Cancer and Reproductive harm - www.p65warnings.ca.gov


2019 marks a new quest for the Kawasaki brand to own the 450cc motocross class. By the looks of it, the new big bore green machine looks like a strong contender, especially when paired with Yoshimura performance.

At Yoshimura, we saw an opportunity to make the new green offering live up to its potential. Power and torque is up across the entire range for both curves with the new KX! Max HP is up an incredible 1.7% and max torque is up 2%. The heart of the power is our RS-4 muffler with its Poly-resonant Duplex front chamber and added overall volume helps make the KX450F come alive.

If you're serious - it's only Yoshimura. Proudly made in the USA!

  • Pentagonal-shaped sleeve
  • Front muffler cap functions as a poly-resonant chamber which helps reduce noise
  • Two-stage stepped baffle
  • Carbon fiber end-cap
  • Stainless tail-pipe
  • Repack Kits, optional Inserts and Spark Arresters 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.

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. Every one of our Championship Winning Motocross exhaust systems and nearly all of our ATV/Side-by-Side applications are 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 2019
  • Kawasaki KX450F 2020
  • Kawasaki KX450F 2021
  • Kawasaki KX450F 2022
  • Kawasaki KX450F 2023
  • Kawasaki KX450X 2021
  • Kawasaki KX450x 2022
  • Kawasaki KX450X 2023


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    Race series product restriction and affirmation

    Warning:

    The RACE SERIES product you are purchasing removes, renders inoperative, or bypasses required elements of the emission control systems of EPA, certified motorcycles of motorcyle engines and may only be installed on motorcycles that are restricted to closed course competition. Installation of this product on a motorcyle that is ridden on a public street, highway, or public lands violates the tampering and defeat device provisions of the Clean Air Act & 203(a)(3)(A) and/or & 203(a)(3)(B) and may subject you to a civil penalty of up to $37,000.

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    Affirmation

    By clicking below, I affirm:
    1. that i have read the above warning;
    2. that any information I have entered is accurate; and
    3. that any motorcycle on which I install the RACE SERIES product will be restricted to closed course competition and will not be ridden on any public street, highway or public lands.