240DRFT wrote:agxs and sportlines are popular
Doesn't mean that's what's good for the agx's.
Sportlines excessively lower the chassis, beyond the point that the shocks can handle, shortening the life of the shocks(The AGX warranty is void if you lower more than 1.5" and if they do blow within their warranty period--they can tell by looking at the strut/shocks' piston if you "slammed" the car)
Tein S-Techs are a good and safe choice. Not to mention they have a warranty for sagging. Currently i use Suspension Techniques springs, other good choices are Eibach Pro-kits (they lower the least amount), H&R springs, and some others that you can find details about in the Suspension sticky ExarKun made.