My car needed a camber kit after the 1.5" Eibach pro-kit drop.
I had wear on the OE rims, I had wear on the aftermarket rims.
My suspension guy was un-able to adjust the non-existant rear camber adjustment. The down side for me was, Eibach hadn't yet produced a camber kit for the Eibach's when I installed them, I had to wait a year.