YOSHIMURA YAMAHA YZ450F 14-17 SLIP ON RS-4 EXHAUST MUFFLER
PROUDLY SOLD BY MX STUFF ● REAL RIDERS NOT RETAILERS
The Yoshimura RS-4 slip on exhaust is a unique design with predicated power and a quiet earthy exhaust note that speaks volumes for performance. This RS-4 features all the benefits of our original RS-4 muffler, but with a unique turned-out end-cap, designed to direct exhaust heat and gases away from the bike's components. To top-it-off, we embossed our Yoshimura's 347 logo in the carbon for a clean look. With all its benefits in mind, the RS-4 is an obvious choice for your bike.
The RS-4 is pentagonal shaped muffler that features a carbon fiber cone end cap, two staged stepped baffle and striking good looks. The RS-4 muffler features a new front cap design that functions as a polyresonant chamber. This design makes for a quieter muffler with improved mid to top end power.
RS-4 slip on exhaust includes an RS-4 muffler, USFS approved spark arrester, all installation hardware, and step-by-step instructions.
- Pentagonal-shaped sleeve
- Front muffler cap functions as a polyresonant chamber which helps reduce noise
- Two-stage stepped baffle
- Carbon fiber end-cap
- Stainless steel tail-pipe
If your bike is listed below, this product will suit it.
- Yamaha YZ450F 2014
- Yamaha YZ450F 2015
- Yamaha YZ450F 2016
- Yamaha YZ450F 2017