Dr. D Exhaust for WR400

I found a DR D complete system for cheap. It looks like it is an older system. Is it worth upgrading from the stock system to this older model Dr. D? If I do, should/would the bike need to be re-jetted?

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