Registered Forum User
Big Twin
Posts: 1,291
Join Date: Feb 2005
Location: Cleethorpes
Mood: Hmmm Conference season
Steve
I did it to my 583 and it was much better, Had the 620 set up but didnt ride it before or after so couldnt comment, Look at the moto one performance website they show dyno before and after modification.
Glyn