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Uh oh - Our system doesn't think this part will fit your 2010 Yamaha YFZ450R SE (change vehicle selection)

FMF

FMF Q4 HEX S/A Slip-On Exhaust Kawasaki KX250 / KX250X 2021-2024

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FMF 4-Stroke Muffler Re-Pack Instructional Video

Stainless Steel/Aluminum/Stainless Steel

Fullscreen Zoom

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$449.99

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Material: Stainless Steel/Aluminum/Stainless Steel

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 Q4 HEX S/A Slip-On Exhaust Kawasaki KX250 / KX250X

The FMF Q4 HEX has always been in a league of its own and proves you don’t need to settle for a plugged up moto muffler hampered by an insert when you can have a compliant muffler engineered for power and performance.

Features:

Less sound equals more ground (helps keep our riding areas open)
Meets USFS and FIM World Enduro sound regulations
Power gains throughout the entire RPM range
Spark arrestor included
Pounds lighter than stock
Rugged design for off-road endurance
Only US manufacturer to offer dedicated quiet exhaust systems
Can be used with stock or FMF Header
Weight: 5.7 lbs
100% Made in the USA

Note: Image is for reference only. Actual slip-on muffler / mid-pipe will vary.

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Uh oh - Our system doesn't think this part will fit your 2010 Yamaha YFZ450R SE (change vehicle selection)

Kawasaki: KX250 2021, 2022, 2023, 2024; KX250X 2021, 2022, 2023, 2024

This item is also available for 118 other models:

Beta: 350 RR 2020-2025; 350 RR Race 2025; 350 RR Race Edition 2021-2025; 350 RR X-Pro 2025; 390 RR 2023-2025; 390 RR Race 2025; 390 RR Race Edition 2020-2025; 390 RR X-Pro 2025; 430 RR 2023-2025; 430 RR Race 2025; 430 RR Race Edition 2020-2025; 430 RR X-Pro 2025; 480 RR 2023-2025; 480 RR Race 2025; 480 RR Race Edition 2020-2025; 480 RR X-Pro 2025

Gas Gas: EX 250F 2021-2023; EX 350F 2021-2023; EX 450F 2021-2023; MC 250F 2021-2023; MC 350F 2022-2023; MC 450F 2021-2023

Honda: CRF250R 2025-2026; CRF250RX 2025-2026

Husaberg: FE250 2013-2014; FE350 2013-2014; FE501 2013-2014

Husqvarna: FC250 2016-2018; FC250 2019-2022; FC350 2016-2017; FC350 2019-2022; FC450 2016-2017; FC450 2019-2022; FC450 Rockstar Edition 2018-2021; FE250 2017-2019; FE250 2020; FE250 2014-2016; FE350 2017-2019; FE350 2020-2022; FE350 2014-2016; FE450 2017-2019; FE450 2023; FE450 2015-2016; FE501 2017-2019; FE501 2020-2022; FS450 2021-2022; FX350 2017-2018; FX350 2019-2022; FX450 2017-2018; FX450 2019-2022

KTM: 250 SX-F 2016-2018; 250 SX-F 2009-2015; 250 SX-F Factory Edition 2015-2017; 250 XC-F 2016-2018; 250 XC-F 2019-2022; 250 XC-F 2009-2015; 250 XCF-W 2009-2016; 350 EXC-F 2017; 350 SX-F 2016-2018; 350 SX-F 2019-2022; 350 SX-F 2011-2015; 350 XC-F 2016-2018; 350 XC-F 2019-2022; 350 XC-F 2011-2015; 350 XC-F Kailub Russell 2021; 350 XCF-W 2020-2022; 350 XCF-W 2012-2016; 400 XC-W 2009-2010; 450 EXC 2009-2011; 450 EXC-R 2008; 450 SMR 2021-2022; 450 SMR 2013; 450 SX-F 2016-2018; 450 SX-F 2019-2022; 450 SX-F 2007-2015; 450 SX-F Factory Edition 2015-2017; 450 SX-F Factory Edition 2018-2021; 450 SX-F Factory Edition 2012-2014; 450 XC-F 2016-2017; 450 XC-F 2019-2022; 450 XC-F 2009-2015; 450 XCF-W 2023; 450 XCR-W 2008; 450 XC-W 2009-2016; 450 XC-W Six Days 2010-2011; 500 XCF-W 2020-2022; 500 XCF-W 2012-2014; 500 XC-W 2013-2016; 505 SX-F 2008; 505 XC-F 2008-2009; 530 EXC 2009-2011; 530 EXC-R 2008; 530 XCR-W 2008; 530 XC-W 2009-2010

Kawasaki: KLX300R 2020-2021; KX250 2025-2026; KX250X 2025-2026; KX450 2024-2026; KX450 2019-2023; KX450 50th Anniversary Edition 2024; KX450SR 2022-2026; KX450X 2021-2023

Triumph: TF450C 2026; TF450E 2026; TF450RC Edition 2025

Yamaha: WR250F 2021-2023; WR250F 2015-2019; WR450F 2019; YZ250F 2014-2018; YZ250F 2019-2026; YZ250F 70th Anniversary Edition 2026; YZ250F Monster Energy Race Edition 2022-2023; YZ250FX 2015-2019; YZ250FX 2020-2025; YZ450F 2018-2025; YZ450F 50th Anniversary Edition 2024; YZ450F Monster Energy Race Edition 2022-2025; YZ450FX 2019-2026

Product Style	Item #	Store SKU	Manufacturer Product #	Availability
Product Style Stainless Steel/Aluminum/Stainless Steel	Item # 10051296	Store SKU	Manufacturer Product # 042393	Availability In Stock: Ships within 24 hours

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