Anti roll bars , I think eibach or h & r list them , are probably what you want if you aren't looking for a lower or stiffer ride .
I've put them on other cars and the difference in lean when cornering is dramatic , they make the car feel a lot safer . They can alter under steer - oversteer levels at the limit so be careful how you set them , they usually have a couple of different settings , just holes drilled at different places . Set them on the soft first and see what it's like , ie , front pushing on or rear end coming around and adjust if possible , although you may only notice this on a track .