Yoshimura RS-4 Enduro Series Slip-On Exhaust
All Yoshimura Enduro Series exhaust components are equipped with USFS-approved spark arrestor, have forest-friendly noise levels, and are tailpipe emissions compliant.
The work that went into developing the RS-4 muffler design paid big dividends during development in AMA Pro Racing. That research was directed at developing the RS-4's unique design that provides an unrivaled combination of power and a quiet exhaust note. The RS-4 muffler features a polyresonant duplex chamber, a two-staged stepped baffle and an innovative carbon cone end cap.
- Pentagonal-shaped sleeve
- Front muffler cap functions as a polyresonant chamber to reduce noise
- Two-stage stepped baffle
- Carbon fiber end-cap
- Includes all required hardware and installation instructions
- USFS-approved spark arrestor
|Country of Origin||USA|
|Mid-Pipe||Varies (make selection above)|
|Muffler End Cap||Carbon Fiber|
|USFS Approved Spark Arrestor||Yes|
|Warranty||1 Year Manufacturer Warranty|
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
- CRF450X 2019-2020
- 250 SX-F 2011-2015
- 350 EXC-F 2012-2015
- 350 SX-F 2011-2015
- 350 XC-F 2014-2015
- 450 SX-F 2011-2015
- 450 XC-F 2013-2015
- 450 XC-W 2012-2015
- 500 EXC 2012-2015
- 500 XC-W 2012-2015
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