Pro Moto Billet WR Silincer Insert

I have a 05 WR450F did all the free mods except the smog, I put on the Pro Moto Billet WR Silincer Insert tonight and fired it up, the header of the pipe started glowing red. Can anyone give some advise on this to what's going on or what to what I'm doing wrong.

Assuming your jetting is correct, that is a completely normal thing. All the WR's and YZF's will make their headpipes glow red if there is no airflow over the headpipe. Don't worry it isnt the silencer insert, I have one too on my need to be alarmed. Also, you may want to check out: :)

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