aFe Power Magnum FORCE 54-12522 BMW X1 28i/ix (E84) Performance Intake System;  (Oiled, 5-Layer Filter) Outflows the factory intake by up to 47% . Produces an additional 11 horsepower and 14 lbs. x ft. torque 5-Layer progressively finer oiled, washable cotton gauze media allows maximum airflow for maximum power 18 gauge powder-coated one-piece heat shield 3" one-piece mandrel-bent wrinkle-black powder-coated intake tube This product is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicles.