You already have a CAI on the car that is more than capable of supplying more than enough air. Taking it out to install an aftermarket CAI is simply a waste of money, and an exercise in making it run worse.
"Worse, you say?" Yes, worse. The more cold air you can get, the denser it is, and density is what makes more power. Aftermarket CAI kits are notorious for allowing air from the engine bay to leak into the somewhat-cold air supply, making less power in the process. Add to that the fact that oiled filter elements allow larger particles to get into your engine and you're tearing it apart from the inside out.
This might help you with your CAI decision: