Hi 46Tbird, I saw your post regarding the 305 35 20 rear tires and would appreciate some information. I have a 2012 GT500 with the same wheels (CS40) and the Eibach Pro Kit (not as lowered as yours). I would like to put a set of Toyo R888R 305 35 20s in the rear and was hoping you could tell me if your setup rubbed anywhere? if so, where. Thanks in advance. Rick