![WR250R 08-20/WR250X 08-11 Race RS-4S Stainless Slip-On Exhaust, w/ Stainless Muffler](http://www.yoshimura-rd.com/cdn/shop/products/133002D520_A_92x92_crop_center.jpg?v=1542421736)
![WR250R 08-20/WR250X 08-11 Race RS-4S Stainless Slip-On Exhaust, w/ Stainless Muffler](http://www.yoshimura-rd.com/cdn/shop/products/133002D520_B_92x92_crop_center.jpg?v=1542421736)
![WR250R 08-20/WR250X 08-11 Race RS-4S Stainless Slip-On Exhaust, w/ Stainless Muffler](http://www.yoshimura-rd.com/cdn/shop/products/133002D520_C_92x92_crop_center.jpg?v=1542421736)
![WR250R 08-20/WR250X 08-11 Race RS-4S Stainless Slip-On Exhaust, w/ Stainless Muffler](http://www.yoshimura-rd.com/cdn/shop/products/133002D520_D_92x92_crop_center.jpg?v=1542421736)
![WR250R 08-20/WR250X 08-11 Race RS-4S Stainless Slip-On Exhaust, w/ Stainless Muffler](http://www.yoshimura-rd.com/cdn/shop/products/133002D520_RS4_STAINLESS_turnOUT_A_92x92_crop_center.jpg?v=1542421736)
![WR250R 08-20/WR250X 08-11 Race RS-4S Stainless Slip-On Exhaust, w/ Stainless Muffler](http://www.yoshimura-rd.com/cdn/shop/products/133002D520_RS4_STAINLESS_turnOUT_B_92x92_crop_center.jpg?v=1542421736)
*Product may vary by application
Emissions Compliance Declaration: QUALIFIED MANUFACTURER DECLARED "MODIFIED PART"
WARNING: Cancer and Reproductive harm - www.p65warnings.ca.gov
Championship winning RS-4 Slip-On exhaust. If you're looking for serious performance, you came to the right place.
A unique design that provides an unrivaled combination of power and a quiet exhaust note. The RS-4 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 which helps reduce noise
- Two-stage stepped baffle
- Turn-out carbon fiber end-cap
- Pre-installed spark arrester insert
- Stainless steel tail-pipe
. . . . .
This product was designed to fit on a standard equipped motorcycle, as delivered from the factory. OE and aftermarket accessories not found on a bike as delivered from the factory may not be compatible with this product.
Attention international customers: This product was designed and tested to be compatible with vehicles in the U.S. marketplace only. Compatibility, including fitment and performance, may vary by marketplace.