The GSX/TSI sway bars do fit, one of the local guys around here has em on his GS.

Hey Todd, while we are on the subject, what are the best sway bars to go with? Ive been looking because the next racing season begins in april and I want to be ready. So far I am looking the suspension techniques and the RMDSM bars. The ST are cheaper but the front bar is the same size as stock (.75")

Or what would your advice be as far as my next suspension mod? I am fairly happy with my setup other than the tires. I was looking at either the sway bars, probably rmdsm or the prothane bushing kit from RRE.