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

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

$340.00
$425.00
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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

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

This Product Fits:


Yamaha
WR450F 2016
YZ450F 2014, 2015, 2016
YZ450FX 2016

This item is also available for 33 other models:

Honda
CRF250R 2010
CRF250R 2011-2013
CRF450R 2009-2010
CRF450R 2011-2012
Husqvarna
FC450 2016
KTM
250 SX-F 2011-2015
250 SX-F 2016
250 SX-F Factory Edition 2015
250 XC-F 2016
350 EXC-F 2012-2015
350 SX-F 2011-2015
350 SX-F 2016
350 XC-F 2014-2015
350 XC-F 2016
450 SX-F 2011-2015
450 SX-F 2016
450 SX-F Factory Edition 2012
450 XC-F 2013-2015
450 XC-W 2012-2015
500 EXC 2012-2015
500 XC-W 2012-2015
Kawasaki
KX250F 2010-2016
KX450F 2012-2015
KX450F 2016
Suzuki
RMZ250 2010-2015
RMZ450 2008-2016
Yamaha
WR250R 2008-2015
WR250X 2008-2014
WR450F 2012-2015
YZ250F 2007-2013
YZ250F 2014-2016
YZ250FX 2015-2016
YZ450F 2010-2013
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Product Style Item # Manufacturer Product # Availability
Stainless Steel/Aluminum/Carbon Fiber 1078201 18211661 In Stock: Ships next business day