I am going to lower my car with Eibach Sportline and I see that they will lowers base model 2.0" front and 2.5" rear and lowers SS model 1.0" front and 1.3" rear. Seeing I have a 2009 SS I wanted to see if I got the right rack spacers which are 1.0in-1.5in drop. But I have been reading that people are going with the 1.5in-2.0in+ spacers. And if it matter I have the OTTP rack spacers.

 

you might get a higher drop than expected with sportlines. i have CM/SSC springs, expecting 1.0" front and 1.5" back but got a limps to school and work and haven't felt anything. just remember to cut your bump stops xD i didn't and i bottom out often lol. it's always a good idea to have rack spacers with sportlines. recommended but not needed. correct me if im wrong.