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Yoshimura RS-4 Slip-On Exhaust Yamaha YZ450F / FX / WR450F 2014-2018

$394.99
$415.78
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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 2014-2018 Resources

Yoshimura RS-4 Slip-On Exhaust Yamaha WR450F / YZ450F / YZ450FX

The Yoshimura RS-4 Slip-On exhaust has been put to the test and has proven its capabilities at the highest level of competition. In 2010 the RS-4 muffler helped Ryan Dungey claim the AMA 450 Supercross and Motocross championships in his rookie season. The Yoshimura-backed GEICO Honda team also took home both East and West Coast Supercross Lites titles in 2012 using the Yoshimura RS-4 exhaust.

Utilizing the same R&D that helped bring success at the national level has resulted in a unique exhaust design that provides an unrivaled combination of power and quiet exhaust note. The Yoshimura RS-4 Pipe features an innovative carbon cone end cap, a two staged stepped baffle, and a polyresonant duplex chamber which acts as a muffler within a muffler to help save weight and centralize mass.

Nearly all Yoshimura exhaust systems that have won Motocross or Supercross championships are members of the Yoshimura Signature Series. All Signature Series pipes have been tested, documented, and marked as required by federal and state regulations. Working in conjunction with factory race teams has allowed Yoshimura to develop a exhaust system that gives you an unparalleled competitive advantage.

Features:

  • Pentagonal-shaped sleeve
  • Polyresonant front muffler chamber which helps reduce noise
  • Two-stage stepped baffle
  • Yoshimura Signature Series muffler
  • 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 bike to ensure fitment.

This Product Fits:


Yamaha
WR450F 2016, 2017, 2018
YZ450F 2014, 2015, 2016, 2017
YZ450FX 2016, 2017

This item is also available for 65 other models:

Honda
CRF110F 2019
CRF250L 2017-2019
CRF250L ABS 2019
CRF250L Rally 2017-2019
CRF250L Rally ABS 2019
CRF250R 2010
CRF250R 2011-2013
CRF450R 2009-2010
CRF450R 2011-2012
CRF450X 2019
Husqvarna
FC250 2019-2020
FC250 2016-2018
FC350 2019-2020
FC350 2016-2018
FC450 2016-2018
FC450 2019-2020
FC450 Rockstar Edition 2018-2019
FX350 2017-2018
FX450 2017-2018
KTM
250 EXC-F 2018-2019
250 SX-F 2019-2020
250 SX-F 2016-2018
250 SX-F 2011-2015
250 SX-F Factory Edition 2015
250 XC-F 2019-2020
250 XC-F 2016-2018
350 EXC-F 2017-2019
350 EXC-F 2012-2015
350 SX-F 2019-2020
350 SX-F 2016-2018
350 SX-F 2011-2015
350 XC-F 2019-2020
350 XC-F 2016-2018
350 XC-F 2014-2015
450 SX-F 2011-2015
450 SX-F 2016-2018
450 SX-F 2019-2020
450 SX-F Factory Edition 2012
450 SX-F Factory Edition 2018-2019
450 XC-F 2013-2015
450 XC-F 2017-2018
450 XC-W 2012-2015
500 EXC 2012-2015
500 EXC-F 2017-2018
500 XC-W 2012-2015
Kawasaki
KX250F 2010-2016
KX250F 2017-2020
KX450F 2012-2015
KX450F 2016-2018
KX450F 2019-2020
Suzuki
RMZ250 2010-2015
RMZ250 2019
RMZ450 2008-2017
RMZ450 2018-2019
Yamaha
WR250F 2015-2018
WR250R 2008-2018
WR250X 2008-2014
WR450F 2012-2015
YZ250F 2014-2018
YZ250F 2007-2013
YZ250F 2019
YZ250FX 2015-2016
YZ450F 2010-2013
YZ450F 2018-2019
YZ450F 2020
Product Style Item # Store SKU Manufacturer Product # Availability
Stainless Steel/Aluminum/Carbon Fiber 1078201 234812D321 In Stock: Ships within 24 hours