Definitely go 18's. The most common tire size for 18's is 225/40/18. I'm definitely happy with the Pro Kit drop.. I was on Lexani springs and my estimate is that they lowered 2.5" in the front and 1.5" in the back. The ride was very harsh, but now I'm on Pro Kits and I think it's the perfect drop. The ride is close to stock and the car handles like a go cart.Looks good. I've been wanting to get rims and lower my car for a while, but I've been trying to figure out what size tires and how much to lower it? I see other accords on the street that are either too low or have too small of a rim + tire radius even though they have 17' or 18' rims. How much did you lower it in the front and back and do you mind giving me the dimensions of your tires? Thanks!