I have 18's, I don't have Eibach springs... However, I highly recommend you spend the extra money to get buddyclub n+ coilovers for their adjustability in height and damping, and also their ability to transform how your car drives. Even if you don't want to get them, you can still have a look at my car sitting at two different heights.

The first one, is when I got it lowered the first time, but it was a little too low for me....









so I got it lifted to where it is now....