wr 450 exhaust???

Hi i have a 2004 wr450f and was wondering if anyone knows if a 2002 yzf 426 full exhaust system will fit my bike?

p.s its an fmf system

I am not positive but I just took my white brothers exhuast off my 1999 yz 426 and put it on my 2006 WR 450. It fit without any issues. I ran it for the weekend and decided an aftermarket pipe is definately needed for the new WR, what a difference. I hope this helps.

Thanks, i just thought that the manifold bore may be different due to the cc difference??

when i got my wr 450 its was fitted with yz 426 silencer but still running the wr header and my wr is an 04 450 but i dumped the silencer in favour of a stock u.s muffler fitted with a db dawg insert.

i would go with white bros. sieries e . for some reason fmf ( witch i think is a great product) seams to choke out alot of power.i found the white bros. exhaust is the best match for the wr. 400 and 450

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