Cold Air Intake
Thus, the cold air intake system can well take the place of your restrictive airbox and stock air paper filter, both of which squander horsepower. It has metal or plastic tubes that lead to a special air filter called short ram air intake. The increase in airflow is made possible by the big diameters of these tubes and their smooth interiors which reduce air resistance.
Air intakes come in many different styles and are constructed from different materials. Some are made of only one type of material (either one of plastic, metal, rubber or silicone), while others are made of composite materials (fiberglass, carbon filer or kevlar combined). The type of material used, however, does not affect the process because of the very brief contact of the material and air during tubing.