-Lexstacy-

I want to get 18in rims with low profile tires, inorder for the car to stay at the stock height how much will i have to lower it? How do i go about doing this?

lex400sc

Whatever the outside diameter of your stock tires are (653.9mm), your new tires for 18-inch rims must be as close to/exactly the same outside diameter (653.9mm). Thus the added two inches of rim reduces the profile of your new tires. Long story short: your new wheels won't change the ride height whatsoever if you use the proper tire size (653.9mm --> 653.9mm), so you don't need to lower the car at all--ALTHOUGH--you will find that it is recommended that you do lower your car, because it looks ugly otherwise