No you shouldnt, it kinda depends on your struts, if they are konis you can make em as stiff as you want and they will never rub, but if you dont you may experience it just barely when you hit a hard bump with a large load in the rear.... other than that you should be fine...
If im correct, the contours optimal offset is 42mm....Correct? good, but you should be fine with the 40mm, im pretty sure that the enkeis CDRs and RSs are a 42mm. so it depends
