More parts and gear on the way!

Can't find what you're looking for? Get in touch

Help & advice Learn more

NEW BIKES ADDED DAILY

Finance available on all bikes. Subject to status.

Yoshimura  |  SKU: 800345
Out of stock

Yoshimura RS-4 Full Exhaust System YZF450 18-19 WRF450 19-20

Regular price £1,122.99
Tax included Shipping calculated at checkout.

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.

Proudly made in the USA!

  • Stainless steel header and tail-pipe
  • Repack Kits, optional Inserts and Spark Arresters are available for all models

Fits these bikes

  • Yamaha WR450F 2019–2020
  • Yamaha YZ450 2019
  • Yamaha YZ450F 2018–2019

Full model and year data is being added for this part.

Message us with your bike and we'll confirm the exact fit before you order.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Maestro
  • Mastercard
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.