I think the s500 has the right off set of 20 for the rear the front is 30 the s500 has 35 front and i think 22 rear anything more than 25 will rub the brake caliber . if you don't race your car, you can get a spacer for the rear ,,,that will work fine . also your lug bolts in the rear must not stick through (stick a lug bolt in the rim and look ot the back side if it sticks through more than about .07 ,,,,,, 7/8 ,,,,,,,7eights,, of an inch it will hit the em brake cable.) you can use 17" ,,18" 19" or 20" rims as long as the tire is not too tall 26.7 (26 is stock) for the rear and 25.6 for the front ,.