Can 03-05 WR450F's exhaust fit WR400/426F?

Heya Peers.

I own an 00 WR400F and I would like to know if the steel frame WR450F's exhaust system can be fitted?

My country did not import any WR450F, so I hope you guys can advise if the header and end can point out the change and the difference in fitting.


the head pipe will interchange

The tail pipe will not

an 03-06 WR450F stock muffler will fit

an 03-05 YZ450F stock muffler will fit with a tiny mod to the lower mount on the subframe.

Thanks guys! Totally appreciate your help!

I was worried if the header had a different bend/mount. Glad to know they are interchangeable!

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now