Keeps damaging particles from entering the engine and causing increased engine wear, Improves engine response time Protects the operational performance of your engine, Reduces ecological footprint through fuel economy, Boosts fuel economy by 6% to 11%, 98% Efficiency Against Rocks And Other Debris on the Road, Part Reference Numbers : 83146 XA5798 CA10347 AF10347 AF1330 PA5798 A35798 49146, Kit Includes: 6x Air Filter, Kit Variations: K57-100287 K57-100340 K57-100639 K57-100926 K57-101340 K57-101720 K57-102100 K57-102860 K57-103240 K57-103620, Part Reference Numbers : 83146 XA5798 CA10347 AF10347 AF1330 PA5798 A35798 49146