My advice would be don't do anything before spending some time on the Maximum Motorsports web site. (www.MaximumMotorsports.com)
Take the time to plow through the tech info links and the instructions, you will learn a LOT even if you end up deciding to go with a different line of products. My own personal experience is that MM is unparalleled for handling improvements. This company was founded and is owned by four automotive and mechanical engineers and they just plain know what they are doing and test, test, test everything themselves in-person on the track in real racing, not just test tracks. They also improve their parts whenever they discover something better. They are the "original" of many parts copied by others (especially UPR) and still the best.
I personally have the following MM parts installed on my car: Caster/camber plates, front and rear coil-overs, tubular A-arms, bumpsteer kit, solid steering rack bushings, 4-point K member brace, rear lower control arms, solid steering shaft, clutch quadrant and a few other things I can't think of right now. Top quality stuff and I wouldn't change a single one of them for anything else. Alex at Granite State Dyno & Tune says my car is the best handling SN-95 he's ever driven.
Oh, and by the way MM has some NICE sales going on right now in their "Deal-of-the-Day". I'm not sure if their daily deals end 12/24 or at the end of the year, but get 'em while they're hot!