I've got 18s with 225/40 tires on it, one inch drop in the rear. The front i still havent lowered the coilovers from fear of rubbing and having to raise it again. I have a 5th gen though. Personally, I would get 17s. I've been thinking about downgrading to some 17s to take off a little more weight. stay away from 16s. Thats for civics