Your car already has a CAI.
Open the hood, and you will see two air intakes, one each side of the radiator, going straight back into the t-body.
Cold air is more dense than warm air, that is why CAI's give you more power.
At least install K&N's on your car if you haven't already.
You say you've read a lot about CAI's on the Xfire, if you have not read them on this forum I suggest you do so, there are many threads discussing the pros & cons and everybody has there opinion.