yz450f exhaust on a yz250f

Does anyone know if it is possible to fit an exhaust system from an 07 yz450f to an 03 yz250f? Even if it takes some mods I can do the work myself. Thanks.:thumbsup:

The header will not fit. If you use an 06 YZ250F header, then the silencer might fit with a midpipe gasket for an 06 YZ450 (assuming you want a stock 07 450 silencer). You will also have to move the location of the mount on the midpipe.

why is everyone telling me on my thread that it isn't possible? I have an 04 250f and plan on trying an 07 450f silencer. from what I understand, I may have to have a sleeve/gasket type of thing and the mount will be a little diferent but otherwise it should work right? what about re-jetting?? will it need to be done or is it gonna run normal without it? pros and cons of the idea? looking for anything and everything, I'm sure it will help the guy out that posted the thread as well.

why is everyone telling me on my thread that it isn't possible? I have an 04 250f and plan on trying an 07 450f silencer. from what I understand, I may have to have a sleeve/gasket type of thing and the mount will be a little diferent but otherwise it should work right? what about re-jetting?? will it need to be done or is it gonna run normal without it? pros and cons of the idea? looking for anything and everything, I'm sure it will help the guy out that posted the thread as well.

I replied to your thread.

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