Airinx Air Intake Kits, are complete vehicle specific systems. They are broken down into two main types. One is a simple to install Airinx combination with a one-piece molded internal funnel and pipe or airflow meter adapter. The second type adds smooth flowing mandrel-bent aluminum piping to improve air flow response, and in some case relocation of the air filter for better performance. Also available, kits for GReddy Supercharger Kits Long Type piping, Larger 60-80mm diameter piping *(requires ECU re-calibration for larger diameters) Aluminum 2x Airinx AY-SB *For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing. **This product is illegal to be driven on public roads in the USA