I had 18 on my RSX, and never scrubbed, 2" drop front 2.5" drop rear. but you have to run about a 35 series tire with it to keep the stock tire hieght. If not you will scrub, but when you run 35 series tires with it , like I did. You will find out that you will be buying more rims and tire when the pot holes eat them up.I switch to 17" rims, and had not bought any replacement since.Good Luck