FMF Factory 4.1 RCT Exhaust System Yamaha YZ450F / YZ450FX 2020-2023

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Material:

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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FMF Factory 4.1 RCT Exhaust System Yamaha YZ450F / YZ450FX 2020-2023 Installation

FMF Factory 4.1 RCT Exhaust System Yamaha YZ450F / YZ450FX

The FMF Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology both internally and externally. In addition, FMF has achieved a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering which moves the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from aerospace grade materials that meet FMF’s exacting specifications and is manufactured 100% in their Southern California factory.

Features:

Massive power gains throughout the RPM range
Huge weight savings over stock exhaust
RTS (Rapid Tuning System) for quick and easy track-side tuning
Removable spark arrestor included
MegaBomb Header
Quiet insert sold separately
Meets AMA and FIM sound requirements
100% made in the USA

Weight:

Stainless Steel / Aluminum / Carbon end cap 7.5 lbs
Titanium / Titanium / Carbon end cap 5.7 lbs

Uh oh - Our system doesn't think this part will fit your 2024 KTM 250 SX (change vehicle selection)

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

This item is also available for 61 other models:

Gas Gas: EX 250F 2021-2023; EX 350F 2021-2023; EX 450F 2021-2023; MC 250F 2021-2023; MC 450F 2021-2023

Honda: CRF250R 2022-2024; CRF250R 2025-2026; CRF250RX 2022-2024; CRF250RX 2025-2026; CRF450R 2021-2026; CRF450R 50th Anniversary Edition 2023; CRF450R-S 2023-2024; CRF450R Works Edition 2021-2026; CRF450RX 2021-2026

Husqvarna: FC250 2019-2022; FC350 2019-2022; FC450 2019-2022; FC450 Rockstar Edition 2018-2021; FE250 2020; FE350 2020-2022; FE450 2023; FE501 2020-2022; FS450 2021-2022; FX350 2019-2022; FX450 2019-2022

KTM: 250 SX-F 2019-2022; 250 SX-F Factory Edition 2021; 250 XC-F 2019-2022; 350 SX-F 2019-2022; 350 XC-F 2019-2022; 350 XC-F Kailub Russell 2021; 350 XCF-W 2020-2022; 450 SMR 2021-2022; 450 SX-F 2019-2022; 450 SX-F Factory Edition 2018-2021; 450 XC-F 2019-2022; 450 XCF-W 2023; 500 XCF-W 2020-2022

Kawasaki: KX250 2021-2024; KX250 2019-2020; KX250 2025-2026; KX250F 2017-2018; KX250X 2025-2026; KX450 2024-2026; KX450 2019-2023; KX450 50th Anniversary Edition 2024; KX450SR 2022-2026; KX450X 2021-2023

Yamaha: WR450F 2024; YFZ450R 2009-2025; YFZ450X 2011; YZ250F 2019-2026; YZ250F 50th Anniversary Edition 2024; YZ250F 70th Anniversary Edition 2026; YZ250F Monster Energy Race Edition 2022-2025; YZ250FX 2020-2026; YZ450F 2026; YZ450F 2023-2025; YZ450F 70th Anniversary Edition 2026; YZ450F Monster Energy Race Edition 2023-2025; YZ450FX 2024-2026

Product Style	Item #	Store SKU	Manufacturer Product #	Availability
Product Style Stainless Steel/Aluminum/Carbon Fiber	Item # 1764467	Store SKU	Manufacturer Product # 044460	Availability In Stock: Ships within 24 hours
Product Style Titanium/Blue Titanium/Carbon Fiber	Item # 1764469	Store SKU	Manufacturer Product # 044461	Availability Out of Stock: Enter your email address below to be notified when this item is available.