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Yoshimura RS-4 Slip-On Exhaust Yamaha YZ450F / FX / WR450F 2018-2023

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Stainless Steel/Aluminum/Carbon Fiber

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$579^.⁰⁰

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Material: Stainless Steel/Aluminum/Carbon Fiber

Blemished/Refurbished

This item is available as a Blem/Refurb. These are items that cannot be sold as "New" merchandise and are limited to stock on hand. See the product details for a description of the product's condition.

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This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.

Yoshimura RS-4 Slip-On Exhaust Yamaha YZ450F / FX / WR450F 2018-2023 Resources

Installation (pdf)

Yoshimura RS-4 Slip-On Exhaust Yamaha YZ450F / FX / WR450F

If you're looking for serious performance then you came to the right place, introducing the Championship winning RS-4 Slip-On exhaust. . A unique design that provides an unrivaled combination of power and a quiet exhaust note. The RS-4 features a Polyresonant duplex chamber, a two-staged stepped baffle and an innovative carbon cone end cap.

Features:

Pentagonal-shaped sleeve
Polyresonant front muffler chamber which helps reduce noise
Two-stage stepped baffle
Carbon fiber end-cap
CARB/EPA tailpipe emissions compliant
100% Made in the USA

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This product is vehicle specific. Click here to select your vehicle to ensure fitment.

Yamaha: WR450F 2019, 2020, 2021, 2022, 2023; YZ450F 2018, 2019, 2020, 2021, 2022; YZ450F Monster Energy Race Edition 2022; YZ450FX 2019, 2020, 2021, 2022, 2023

This item is also available for 50 other models:

Gas Gas: EX 350F 2021-2023

Honda: CRF250L 2017-2020; CRF250L ABS 2019-2020; CRF250L Rally 2017-2020; CRF250L Rally ABS 2019-2020; CRF300L 2021-2023; CRF300L ABS 2021-2023; CRF300L Rally 2021-2023; CRF300L Rally ABS 2021-2023; CRF300LS 2023; CRF450X 2019-2024

Husqvarna: FC250 2016-2018; FC250 2019-2022; FC350 2016-2018; FC350 2019-2022; FC450 2016-2018; FC450 Rockstar Edition 2018; FE501 2017-2019; FX350 2017-2018; FX450 2017-2018

KTM: 250 EXC-F 2018-2019; 250 SX-F 2016-2018; 250 SX-F 2019-2022; 250 SX-F Factory Edition 2015; 250 SX-F Factory Edition 2021; 250 XC-F 2016-2018; 250 XC-F 2019-2022; 350 EXC-F 2017-2019; 350 SX-F 2016-2018; 350 SX-F 2019-2022; 350 XC-F 2016-2018; 350 XC-F 2019-2022; 350 XC-F Kailub Russell 2021; 450 SX-F 2016-2018; 450 XC-F 2017-2018; 500 EXC-F 2017-2019

Kawasaki: KX250F 2017-2020; KX450 2021-2023; KX450F 2019-2020; KX450SR 2022-2023; KX450X 2021-2023

Suzuki: RMZ250 2010-2015; RMZ450 2008-2017; RMZ450 2018-2024

Yamaha: WR250F 2020-2024; WR450F 2016-2018; YZ250F 2019-2022; YZ250FX 2020-2022; YZ450F 2014-2017; YZ450FX 2016-2017

Product Style	Item #	Store SKU	Manufacturer Product #	Availability
Product Style Stainless Steel/Aluminum/Carbon Fiber	Item # 1764788	Store SKU	Manufacturer Product # 234832D320	Availability In Stock: Ships next business day