I cut mine and Ran Them For 17 plus years.With out any Issues.Also one thing you have to keep in mind Is Keep The Heat to a MIN. Go slow/Little at a time.Some rockers also Need to be trimed on the Under side When USEING Large DIA Springs. I have Not ever had to do this Myself But i have seen it.
And Also I have Never seen or heard of any issues with doing do.. BUT like any company who makes ANYTHING if you make any Mods to their product You
Lose what warranty there is.

Larry/Twisted6
[oooooo] smile
Adding CFM adds boost smile
shocked God doesn't like ugly.