Remember, it's a Mass Air Flow sensor- it doesn't increase or decrease the amount of air entering your engine, it just measures how much is entering. And also there's no need for an aftermarket throttle body either-once again the stock one is enough for even a supercharged engine which is consuming way more air than a stock engine. Don't fall for the hype that a bigger TB is going to make you more power. A good tune will do that though. For $600 you can buy an Autocal with lifetime tunes from Blackbear Performance and gain HP as well as make your shifting faster and firmer and will wake up your truck more than you can imagine. And you can install tunes yourself that they create for you. They e-mail the tune to you. You just hook up the Autocal to your OBD port and install it. If you want to spend some money to make your truck faster, it's the way to go.