aFe Power Magnum FORCE 54-10831 VW Golf/Jetta Performance Intake System (Oiled, 5-Layer Filter) Fits I4 models 5-Layer progressively finer oiled, washable cotton gauze media allows maximum airflow for maximum power Durable 16 gauge, one piece powder-coated heat shield Uses the factory intake tract This product is 50-state legal (CARB E.O Number D-550-3)