well i think it's all going to depend on how much backspacing you have. i have 295/45/18 (28.3") nitto's on gt500 wheels with the pro kit, and they don't rub at all, however they don't stick out past the fender either.
my rear tires are 27.5" tall with prokit (in sig) and i've never hit or rubbed...my next tire will be 28.5...keep in mind the width and rim size/offset also plays a large role in whether or not they rub.