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FMF Factory 4.1 RCT Exhaust System Yamaha YZ250F / YZ250FX / WR250F 2014-2019

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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 Exhaust System Yamaha YZ250F / YZ250FX / WR250F 2014-2019 Resources

FMF Factory 4.1 RCT Full Exhaust Yamaha YZ250F / YZ250FX / WR250F

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
  • Meets AMA and FIM sound requirements 
  • Quiet insert sold separately
  • 100% made in the USA

Weight:

  • Stainless Steel / Aluminum / Carbon end cap 7.3 lbs
  • Titanium / Carbon end cap 5.4 lbs
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This product is vehicle specific. Click here to select your bike to ensure fitment.

This Product Fits:

Yamaha
WR250F 2015, 2016, 2017, 2018, 2019
YZ250F 2014, 2015, 2016, 2017, 2018
YZ250FX 2015, 2016, 2017, 2018, 2019

This item is also available for 84 other models:

Gas Gas
EX 250F 2021
EX 350F 2021
EX 450F 2021
MC 250F 2021
MC 450F 2021
Honda
CRF150R 2007-2019
CRF250R 2014-2017
CRF250R 2018-2021
CRF250RX 2019-2021
CRF450R 2013-2014
CRF450R 2015-2016
CRF450R 2017-2018
CRF450R 2019-2020
CRF450RX 2017-2018
CRF450RX 2019-2020
Husaberg
FE350 2013-2014
Husqvarna
FC250 2014-2015
FC250 2016-2018
FC250 2019-2021
FC350 2015
FC350 2016-2018
FC350 2019-2021
FC450 2014-2015
FC450 2016-2018
FC450 2019-2021
FC450 Rockstar Edition 2018-2020
FE250 2014-2015
FE350 2014-2015
FX350 2017-2018
FX350 2019-2021
FX450 2017-2018
FX450 2019-2021
KTM
250 SX-F 2011-2012
250 SX-F 2013-2015
250 SX-F 2016-2018
250 SX-F 2019-2021
250 SX-F Factory Edition 2015-2017
250 XC-F 2013-2015
250 XC-F 2016-2018
250 XC-F 2019-2021
250 XCF-W 2014-2016
350 EXC-F 2012-2015
350 SX-F 2011-2012
350 SX-F 2016-2018
350 SX-F 2019-2021
350 XC-F 2011-2012
350 XC-F 2016-2018
350 XC-F 2019-2021
350 XCF-W 2014-2016
350 XCF-W 2012-2013
450 SMR 2013
450 SX-F 2011-2012
450 SX-F 2013-2015
450 SX-F 2016-2018
450 SX-F 2019-2021
450 SX-F Factory Edition 2012-2014
450 SX-F Factory Edition 2015-2017
450 SX-F Factory Edition 2018
450 XC-F 2013-2015
450 XC-F 2016-2018
450 XC-F 2019-2021
450 XC-W 2012-2016
500 EXC 2012-2015
500 XCF-W 2012
500 XC-W 2013-2016
Kawasaki
KX250 2019-2020
KX250F 2009-2016
KX250F 2017-2018
KX450 2019-2021
KX450F 2012-2015
KX450F 2016-2017
Suzuki
RMZ250 2013-2018
RMZ250 2019-2021
RMZ450 2011-2017
RMZ450 2018-2021
Yamaha
WR450F 2016-2018
WR450F 2019
YZ250F 2019-2020
YZ250FX 2020
YZ450F 2020-2021
YZ450F 2014-2017
YZ450F 2018-2019
YZ450FX 2016-2018
YZ450FX 2019
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style Titanium/Blue Titanium/Carbon Fiber Item # 1001590 Store SKU Manufacturer Product # 44431/044431 Availability Out of Stock
Product Style Stainless/Aluminum/Carbon Fiber Item # 1001630 Store SKU Manufacturer Product # 44430/044430 Availability Out of Stock