The search does says the term "20" is too short so i cannot find my answer. Who is riding on 20's in the rear? What size tires are you running? I assume the fender had to be rolled? What suspension are you on?
it depends on the width of the wheel and your suspension setup as well, you could technically put 26/28 or larger wheels on your car if you wanna jack it up like all the people in the old chevy's do... i know there was some basketball player, there was a video of his supra on the dyno and he had 20s on it.
A supra at HIN in Orlando recently had CCW 505a 20's in the rear. But it was a trd Widebody. Your best bet, call CCW or iForged and see what offsets/tire combo they reccomend. And more than likely the fender will have to be rolled. or cut.
oh yeah, sorry bro..i just breezed through and i thought you were getting a census on who has 20's on their car period....i'm sure they can definitely fit without rolling the fenders, just depends on what offset you get...