Pierce

I have a 2015 Mustang Gt with the performance package, I also have TruFiber 1.5" fenderflares for the front and rear, it is lowered 1.5", Also have 1.5" wheel spacers for the rear tires but they can be removed, I am wondering what wheels and tire sizes to get for them to fit with the fender flares, any help is greatly appreciated. Thanks!