Originally Posted by XDEEDUBBX
Hopefully it will settle a bit more. I think the acs drop is slightly lower but not by much. IMO the H&R drop is perfect.
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.