Yoshimura - RS-4 Slip-On (Yamaha)

The Yoshimura RS-4 Signature series slip-on system for Yamaha has been developed to win races. Adding power throughout the range and providing torque to help the Yamaha 4-Stroke motocross bikes to grab holeshots, the RS-4 slip-on provides riders the ability to add factory style power at a more convenient price point. This gives the rider confidence to battle with the best. The RS-4 Slip-On for Yamaha motocross bikes has been designed to save weight and add monster performance over the stock muffler. The unique Pentagonal-shape sleeve gives your bike that factory look while adding an exhaust note that isn’t loud thanks to the Polyresonant duplex chamber and two staged stepped baffle for increased performance. Adding to the factory look, the RS-4 Slip-On is finished off with a Carbon Fiber cone end cap. The Yoshimura RS-4 Signature Series Slip-on is totally re-buildable to keep the performance on the level. Yoshimura has done it again and offered factory equipment for any rider looking to increase power on their motocross bike.

For 2018 Yamaha made some major refinements to the already potent YZ450F. Adding to the usable and tractable power is how we make the new YZ450F even better. Now there can be more power to rip holeshots, yet making the bike user friendly at the end of the moto when your right hand gets a little frisky.The new Yoshimura RS-4 Signature Series full system adds 2.8% more h.p. and 1.4 ft-lb. more torque to give the rider better, more linear throttle response.

With years of involvement in professional racing, Yoshimura did not hold back in the development of the RS-4 Signature Series Slip-On for Yamaha motocross bikes. From their clean look to their fit and finish, Yoshimura exhaust systems are the built to the highest standards so you don’t have to worry about loss of power at the wrong time.

You can find all your Yoshimura RS-4 Signature Series Slip-on systems for Yamaha 4-stroke motocross bikes at BTO Sports, where we have the best prices and availability for your bike. While this particular offering from Yoshimura is for the Yamaha motocross bikes such as the YZ 450F, we also carry parts for KTM,Kawasaki, Honda, Suzuki, and Husqvarna as well. Be sure to check BTO often for the latest dirt bike parts like the Yoshimura RS-4 Signature Series Yamaha Slip-On.