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Yoshimura RS-4 Slip-On Exhaust KTM 450SX-F / 450XC-F / 500 EXC-F / Husqvarna FC450 / FX450
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.
- Pentagonal-shaped sleeve
- Polyresonant front muffler chamber which helps reduce noise
- Two-stage stepped baffle
- Carbon fiber end-cap
- CARB/EPA tailpipe emissions compliant
- Yoshimura Signature Series muffler
- 100% Made in the USA
|Product Style||RevZilla Item #||MFR. Product #||Availability|
|Product Style Stainless Steel/Aluminum/Carbon Fiber||RevZilla Item #1290450||MFR. Product #264612D321||AvailabilityOut of Stock|
Please review this product's fitment notes & exceptions prior to purchase: Add to Cart
This Product Fits
This item is also available for 48 different bikes. View All Models
- CRF250L 2017-2018
- CRF250L Rally 2017-2018
- CRF250R 2010
- CRF250R 2011-2013
- CRF450R 2009-2010
- CRF450R 2011-2012
- 250 SX-F 2016-2018
- 250 SX-F 2011-2015
- 250 SX-F Factory Edition 2015
- 250 XC-F 2016-2018
- 350 EXC-F 2012-2015
- 350 SX-F 2016-2018
- 350 SX-F 2011-2015
- 350 XC-F 2016-2018
- 350 XC-F 2014-2015
- 450 SX-F 2011-2015
- 450 SX-F Factory Edition 2012
- 450 SX-F Factory Edition 2018
- 450 XC-F 2013-2015
- 450 XC-W 2012-2015
- 500 EXC 2012-2015
- 500 XC-W 2012-2015
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38 Customer Reviews
29 Questions & 30 Answers