0 - items(s)

You have no items in your shopping cart.

Yoshimura Yamaha Yz450f 2018 Signature Rs-4 Full System

Yoshimura Yamaha Yz450f 2018 Signature Rs-4 Full System

More Views


  • MSRP: $725.00
  • Brand: Yoshimura
  • Style: Rs-4
  • Condition: New
  • SKU: 961-6412-WPS-J
  • Manufacturer Part Number: 234820D320
  • Warranty: Yes
  • Part Type: Exhaust
  • Placement on Vehicle: Rear
  • Fits: Street,Dirt Bike
  • Type: Full System
  • Country of Manufacture: United States
  • Compatible Make: Yamaha
  • Compatible Model: Yz450f
  • Years: 2018

Yamaha Yz450f 2018 year models

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 are available for all models

Note: Installation of a new exhaust system may change your motorcycles fuel-air mixture requirements. Please consult the manufacturer directly with questions regarding any modifications that may need to be made during, or after installing their product. If a jet kit or EFI controller is recommended please see the Intake/Fuel section for products available

Note: Exhaust discoloration (bluing) is caused by engine conditions such as cam timing, fuel-air mixture, operating temperature, etc. It is not the result of defective manufacturing; therefore it is not covered by any warranty. See the Chems/Lubes section for products to help remove or prevent exhaust discoloration

Brands & Clients

  • brand