Originally Posted by SMA335i
According to the Eibach's R&D tech's numbers, the drop should be comparable to that of RD springs (1.0" in the front and 0.8" in the rear). As I have not seen many 550i lowered with stock wheels, I have nothing to reference.
I just posted some pics of my car (crappy phone pics) in this thread if you needed some comparisons. I have a 550i on H&R's.