Just measure how much gap there is betwen your fender now and your wheel, and that will tell u how much u need to drop your car to get a .5 inch gap. I myself would not drop it that far, due to the harshness of the ride. I bought tein s-techs which dropped my crx about 1.5" in the front and 1" in the rear on 16"s. Awesome ride quality, but has a very lowered look. Do a little more research. U can probably find alot of information on ebay. H & Rs will drop your car 2.25" front and 2" rear, if u need more of a drop, but your suspension will be much stiffer than stock, plus you'll probably need stiffer struts for these springs. Moral of the story is choose wisely to find a good setup for what you're gonna be doing with this car.