Quote Originally Posted by Si Speed 317 View Post
OEM is 215/45/17. In order to keep a closer speed at to oem at 60, youll need 235/40 vs 235/45 which will havr you going too fast at 60. Check it out: http://www.rimsntires.com/specs.jsp
I have the speed correction setting in kpro that's set up for 235/45's.