I was just looking at the sway bars on your site and I noticed that the ST kit is only for the base model Cobalts.

The Eibach and the Progress kits don't say if they are for the SS or not, do you know if they are. Also, do you know the size of the bars on the Eibach kit and stock?

i was told last night that the eibach front bar is the same size as stock but the bushings make the differnce

and i would also like the rear progress bar i was thinking of maken a GB on it if we could

The front on the cobalt SS SC are the same size or very close, you would get very little benefit from the full kit. Just go with the progress rear bar :) save some $

what he said ^^ i have rear bar and strut bar works wonders!