Lowering with Eibach will give you 1-1.5" . If that provides more target for scraping you must have to be careful of it already.
http://performance-suspension.eibach...prings/pro-kit
I live in a land of ice turds and snow in the winter. My front is lowered 0.5" and my rear is 1.5", I have not had one single instance of scraping or hitting something on the road since install.