hi to all, any help on whether a goodyear f1 315-35/17 will fit on a gt? i've read many posts on many forums, some say yes, others no..what do you all think, i'm pretty sure they will fit, but will the mac cat back exhaust i have rub on the tires? the exhaust is w/ the 3.5 tips and is model #tk9820. all help welcomed..thanks in advance....also, will 255 40 17 f1's fit in the front on stocl 17x8 bullit wheels? sorry for all the questions...