Hey! First off. Never put one of those kind of chips in your car. All they are is an intake sensor mod. And, it only makes your car run richer. They MPG gains that they claim are BS. As far as the intake goes, audi has actually really done a good job with the factory box. But, if you're looking for something better, Evolution has done a pretty good job with theirs
Evoms intake
I've got one on my S4, and though it doesn't look as cool as the cold air on eBay. You can still cover it with your factory cover and still gain 3-5 HP.