Despite popular belief and marketing slogans, it doesn't improve mileage. Of all those who know what a CAI is and actually install one, do you think any of them will be driving NORMAL? No. Even if they DID, MPG increase is negligible at best, but any gain will be negated by how much you love flooring it. Point is mootI might do the CAI, because of the better gas mileage.
Buy a sunroof deflector.Hah, then I'll save $250. I'm definitely adding a sub to the car, the question is more of a when. I also have been reading about how you can change out the stock speakers, and just run an amp from the stock navigation headunit to the 4 aftermarket speakers.
I don't really want to change the stock speakers, but at the same time, I like driving on the interstate with the sunroof open, and can't really hear the speakers well, and sure as hell can't hear the voice of the navigation lady.