Yoshimura exhaust upgrade?

Greetings all,

A noob here looking for some guidance.

I have my first bike 99 wr400f which I am looking to modify. I believe it has a standard header and a yz muffler. I am looking at a Yoshimura Stainless header pipe with titanium rs-3 muffler in the hope that it will be less restrictive and more responsive than the current setup? Also will the carb need tuning / jetting or will I be able to bolt on and ride?

Many thanks,


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