What are you rolling on right now? If it is stock, make the next purchase rollers. I haven't done squat to my car except the rollers and it made a hellacious difference in cornering. I do know that all that Buck and injen have said is some damn solid advice. And yes, buy all the books that you can find on performance suspensions and engines and tuning. It will help and then listen and pay attention here. There are some gurus here that know their shit better than most technicians ever will!

Carl