225 is the stock width that comes with it, wouldn't go over 245 on a 7.5" wide rim (I ran Falken Ziex 950 245/50's on my 18's) otherwise sidewall bulge is horrific and you negate the extra tire width since it's curling up. Assuming you have RWD any year 20x8 will bolt right on and you can step up to a 255 without issue (what I have on mine)...