Quoting MadBeachDSM:
I'm way out of the norm and have an Eibach 1g GSX Pro kit springs with a custom 1" spacer in the rear on KYB GR2's. I can't comment on how the handling is as opposed to the H&R, or the Evo 8/9, as I've never experienced either, but I can say, it was quite the improvement and handles great. It's stiff, but not bouncy, and seems to do very well. I have about 11,000 miles on the springs and shocks. Although GR2's are not recommended for use with drop springs, they are still in perfect shape and not blown out or anything of the sort, though if I had it to do over, I would go with AGX's.
The ride height seems to be spot on as well, at least in my opinion, I measured about a 1-3/4" drop all around. I originally toyed with a .5" spacer in the rear, but the back sagged a bit much. The GSX springs are shorter in the rear. The 1" spacer worked well.
Mad Beach that's a really clean looking car. Have you got a member's rides post up yet? If not you should do one! /ubbthreads/images/graemlins/worthy.gif