my car had one of the first eibach sets on it (m/b slk s320) in late '04. it is slammed/very low by comparison of today's available eibach pro-kit set.
i truly think eibach revised the kit and raised the lowering height. my car dropped at least 2 inches.

here are my ride height measurements:

(front):
IMG_0845.jpg

(rear):
IMG_0844.jpg

i am very happy with the changes. i also added koni adjustable shocks to complete the suspension. however the shocks are not required...i just like a crisp rebound.

i purchased my eibach pro-kit suspension thru the: tirerack.com.

IMG_4181.jpg

hope this helps!