Yamaha YZ450F 2018–2019 / WR450F 2019–2020 Yoshimura RS-4 Full Exhaust System
Yamaha YZ450F 2018–2019 / WR450F 2019–2020 Yoshimura RS-4 Full Exhaust System
2QL Pyewipe Road
2QL Pyewipe Road
Unit 1
Grimsby DN31 2QL
United Kingdom
Yamaha YZ450F 2018-2019 / WR450F 2019-2020 Yoshimura RS-4 Full Exhaust System
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
FREE UK Delivery on orders placed over £75.
Delivery is available Worldwide. See our Delivery Information page for further details.
Returns & Refunds
We're committed to providing a great customer service and wish our customers to be 100% satisfied with purchases.
Please review our Returns Information or Contact Us if you have any queries.
Returns & Refunds
We're committed to providing a great customer service and wish our customers to be 100% satisfied with purchases.
Please review our Returns Information or Contact Us if you have any queries.
Secure Payment
All our orders are 100% secure. We know this because our e-commerce system is Level 1 PCI compliant and uses 128 bit SSL encryption to ensure credit card data is secure.
Which is the same level of encryption used by large banks around the world.
Secure Payment
All our orders are 100% secure. We know this because our e-commerce system is Level 1 PCI compliant and uses 128 bit SSL encryption to ensure credit card data is secure.
Which is the same level of encryption used by large banks around the world.
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