Sway bars..Suspension techniques makes on for your car ($285 bucks) and they sell an adapter kit (like 90 bucks).
Then get a master bushing set (energy suspensions) and be prepared to spend some decent money to get it installed if you can't do it yourself.
Then get front and rear (upper) strut tower bars..But not a cheap set because they are cheap and flex and negate any benefits.. Best front is one that bolts to the strut towers and the firewall.
Then just get some koni yellow shocks (use the lower perch mount) and use stock springs.
Or invest in a full coilover set (rebuildable is preferred) Then spend time at the track and do some test/tune..
