Sick ass mod to let people know "it's turbo". No, just playin'. It cools the charge air from a turbo or supercharged car. Usualy mounted in front of the vehicle, hence the name front mount. Hot air goes in on one side (
hot side) and cool air comes out the other (cold side). Does'nt really increase horsepower but maintains it after beating up on your car. They come in different sizes depending on how much
hp's you're putting down or how
ricey you're feeling that day.