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FMF Factory 4.1 RCT Slip-On Exhaust KTM / Husqvarna / Gas Gas 350cc-450cc 2018-2023

$641.24$812.24
$674.99$854.99
Save up to $42.75 5%
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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.

FMF Factory 4.1 RCT Slip-On Exhaust KTM / Husqvarna / Gas Gas 350cc-450cc 2018-2023 Resources

FMF Factory 4.1 RCT Slip-On Exhaust KTM / Husqvarna / Gas Gas 350cc-450cc

The FMF Factory 4.1 RCT Slip-On 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 trackside tuning
  • Removable spark arrestor included
  • Quiet insert included (94db)
  • Can be used with FMF or stock OEM Header
  • 100% made in the USA

Weight:

  • Stainless Steel / Aluminum / Carbon end cap 4.4 lbs
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Please review this product's fitment notes & exceptions prior to purchase: Add to Cart

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

Fitment Notes & Exceptions
  • This product is intended for offroad / track use only. This product is NOT intended for on-road use and may not be legal for on-road use in your jurisdiction.

This Product Fits:


Gas Gas
EX 350F 2021, 2022, 2023
EX 450F 2021, 2022, 2023
MC 350F 2023
MC 450F 2021, 2022, 2023
Husqvarna
FC350 2019, 2020, 2021, 2022
FC450 2019, 2020, 2021, 2022
FC450 Rockstar Edition 2018, 2020, 2021
FX350 2019, 2020, 2021, 2022
FX450 2019, 2020, 2021, 2022
KTM
350 SX-F 2019, 2020, 2021, 2022
350 XC-F 2019, 2020, 2021, 2022
350 XC-F Kailub Russell 2021
450 SX-F 2019, 2020, 2021, 2022
450 SX-F Factory Edition 2018, 2020, 2021
450 XC-F 2019, 2020, 2021, 2022

This item is also available for 81 other models:

Gas Gas
EX 250F 2021-2023
MC 250F 2021-2023
Honda
CRF250R 2022-2024
CRF250RX 2022-2024
CRF450X 2005-2017
CRF450X 2019-2024
Husaberg
FE250 2013-2014
FE350 2013-2014
FE501 2013-2014
Husqvarna
FC250 2016-2017
FC250 2019-2022
FC350 2016-2017
FC450 2016-2017
FE250 2020
FE250 2017-2019
FE250 2014-2016
FE350 2020-2022
FE350 2017-2019
FE350 2014-2016
FE450 2023
FE450 2017-2019
FE450 2015-2016
FE501 2020-2022
FE501 2017-2019
FX350 2017-2018
FX450 2017-2018
KTM
250 EXC-F 2017-2019
250 SX-F 2016-2018
250 SX-F 2019-2022
250 SX-F 2009-2015
250 SX-F Factory Edition 2015-2017
250 SX-F Factory Edition 2021
250 XC-F 2016-2018
250 XC-F 2019-2022
250 XC-F 2009-2015
250 XCF-W 2009-2015
350 EXC-F 2017-2019
350 SX-F 2016-2018
350 SX-F 2011-2015
350 XC-F 2016-2018
350 XC-F 2011-2015
350 XCF-W 2020-2022
350 XCF-W 2012-2016
400 XC-W 2009-2010
450 EXC 2009-2011
450 EXC-F Six Days 2017-2019
450 EXC-R 2008
450 SMR 2013
450 SX-F 2016-2018
450 SX-F 2007-2015
450 SX-F Factory Edition 2015-2017
450 SX-F Factory Edition 2012-2014
450 XC-F 2016-2018
450 XC-F 2009-2015
450 XCF-W 2023
450 XC-W 2009-2015
450 XC-W Six Days 2010-2011
500 EXC 2017
500 EXC-F 2018-2019
500 XCF-W 2020-2022
Kawasaki
KX250 2019-2020
KX250 2021-2024
KX250F 2009-2016
KX250F 2017-2018
KX250X 2021-2024
KX450 2024
KX450 2019-2023
KX450F 2009-2011
KX450SR 2022-2023
KX450X 2021-2023
Suzuki
RMZ250 2019-2024
RMZ450 2018-2024
Yamaha
WR250F 2020-2024
WR450F 2020
WR450F 2019
YZ250F 2019-2023
YZ250F Monster Energy Race Edition 2022-2023
YZ250FX 2020-2024
YZ450F 2018-2022
YZ450F Monster Energy Race Edition 2022
YZ450FX 2019-2020
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style Stainless Steel/Aluminum/Carbon Fiber Item # 1642064 Store SKU Manufacturer Product # 045628 Availability In Stock: Ships within 24 hours
Product Style Titanium/Blue Titanium/Carbon Fiber Item # 1648288 Store SKU Manufacturer Product # 045629 Availability In Stock: Ships within 24 hours
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