Yoshimura Yamaha YZ250F 14-18/ YZ250Fx/Wr250F 15-18 RS-4 Stainless Slip-On Exhaust, W/ Aluminum Muffler

Yoshimura Yamaha YZ250F 14-18/ YZ250FX/WR250F 15-18 RS-4 Stainless Slip-On Exhaust, w/ Aluminum Muffler

• 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


• Weight: 0.3 lbs lighter than stock configuration

The work that went into developing the RS-4 muffler has paid big dividends in Off-road Racing; winning multiple Supercross and Motocross titles since it's inception. We've developed the current generation RS-4 based on that research & development, and the result is a unique design that provides an unrivalled combination of power and quiet exhaust tone. The RS-4 features a Polyresonant duplex chamber and two-staged stepped baffle for increased performance, while a carbon cone end cap finishes off its innovative styling. Dedicated to uncompromising quality standards, Yoshimura have been manufacturing pipes to improve performance for years.

To Fit:
Yamaha WR250F 2015-2018
Yamaha YZ250F 2014-2018
Yamaha YZ250FX 2015

About Yoshimura

Founded in 1954 by Pop Yoshimura in Fukuoka, Japan, Yoshimura Motors started as a company focused on engine tuning. It is now a company that produces world-class, high end exhaust systems that drive racers to victory in their competitions. The company is renowned for its dedication to research and development and using cutting-edge technology to create products that remain unrivalled in the market. Yoshimura has won more championships than any other exhaust brand in the industry and has been producing exhaust systems and modified engines for over 60 years.

Shop for Yoshimura Exhausts at AMX!

If you want to enhance your dirt bike engines performance, one solution is to replace your motorcycles standard exhaust system with aftermarket exhausts. Yoshimura is a leading manufacturer of some of the finest exhaust systems available, speak to your local AMX team to discuss which exhaust is right for your bike, or to place a custom order. AMX offers free standard shipping on all online orders over $49, so make sure you get all of your Spare Parts and Accessories added to the cart.