If you are serious at all about suping up a car, you should get a different car.
That being said, you can probably find the basic stuff for you car. Intake, and exhaust systems from Injen or AEM. There's probably a company that will mess with the computer chip. You could have someoe do a custom turbo kit. Lol, there's always NOS.
Wings West will have a few basic body kits for your car. Check Tokico for suspension upgrades. Get some rims, and a custom paint job.
I guess it depends on if you want go, or show, or if you just want to be a ricer.