Prove it!

XR's only has a slip on exhaust that they claim increases torque by 13 lb. ft. Even over the HRC tip. I don't think so. That more of a gain than uncorking it from stock. Has anyone tried this miracle muffler? I want to see a dyno chart! :)

I think that's just regarding the corked California model. Maybe their wording is askew.

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