Will 20's fit?
 

Im lookin into gettin some 20x11 size HRE rims in the rear and 19x10 in the front. These rims were designed for a vette, but i have heard of people using them for maros and birds. Does anyone have any more info i can use about these rims? also, i know rims affect performance after being 18 inches or more, but does it affect it that much?