Go to
www.tirerack.com or to
www.tires.com they will tell you the step up sizes you need to go with on your car for the 18's it goes 225/35/18 215/40/18 and there is one more b/c when you have a tire that does not step up right it will through out your speedo on your car. I have some 18's on a 91 accord i just bought and i want to get rid of them i think they are too big for a 91 accord ex and they have 225/40/18 just go to those websites and they will let you know what size tires to get. and usually a 1.5 drop on most accords if you go with 18's looks pretty good.IMO