If you mean you're upgrading your suspension, I would suggest Eibach lowering springs and Koni struts. But you're talkin' a GRAND to do that.
Basic handling upgrades would be Strut Tower Braces (mine are from a Buick Regal and cost about $17.00 each from the Buick dealer!) Possibly sway bars.....(around $150 for both)......
I'm really more of an APPEARANCE guy! (duh!)
(Although I am saving my pennies for the IPS Supercharger!!!!!