[thstone]

GT-3 lower control arms would be the next logical step. If you're getting a decent amount of seat time then you should be getting close to needing more neg camber to keep the front tires flat in the turns.

After that, its gonna be the whole BSR suspension package (PSS9's, adj sways, adj drop links and adj rear toe links). It is hard to do this one step at a time because all of the components work together (you need the PSS9's to lower the car and because the car is lower, then the drop links have to be adjustable and the rear toe link has to be adj.)