Go to www.tirerack.com for sizing.sparticus56 said:I just purchased 4 ADR SZ1 17 X 7 rims for my 1996 mustang...I am looking to find tires that will give me the wider/more aggressive look than my current stock tires and rims. What is the biggest/widest low profile tire that I could get to achieve this look? I've been hearing 225/45/17 is the largest I can go...what do you think? Thanks