Coupe, Sedan, Convertible? Which motor? Trim level?
You can get lowering springs and such, Any aftermarket headlights or taillights can be found on eBay.
You can get an intake from CRAB intakes. and a tune from WAMS.
AIT Makes a body kit for the sedan and coupe SedanCoupe
There's a kind of lip kit body kit that I found, Just go searching around google and you'll find it. There isn't much else out there. Search around the Members Rides section of the forums. you can get a lot of ideas for mods and learn a lot of info too.