I think you may be looking for quality coilovers that can retain the stock height. Sway bar upgrades will only help roll, not ride. You might contact MeisterR about their ZetaCRD+ coilovers for your application. Otherwise, there is a strut folks talk about that will help ride and handling. If I remember correctly, it's a Koni "Gold" something. I'm sure someone else will chime in here shortly.