Check out over two dozen styles of air intakes at RealTruck.com. Adding a cold air intake or ram air intake is a simple way to boost horsepower, torque, and fuel efficiency in your truck, SUV, or car. Factory filters and intake tubes aren't designed to allow maximum air-flow to the engine, which leads to an engine that isn't able to perform at its highest level. By replacing the smaller air filter with a larger version, as well as separating the air-intake source from engine heat, the engine receives a colder, denser air charge that burns more efficiently. A cold air intake can be installed in your garage or driveway with basic hand tools.