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 : 83069 XA5647 CA10088 AF10088 AF1343 PA5647 A25647 49069, Kit Includes: 12x Air Filter, Kit Variations: K57-100307 K57-100555 K57-100846 K57-101133 K57-101357 K57-101737 K57-102497 K57-102877 K57-103257 K57-103637, Part Reference Numbers : 83069 XA5647 CA10088 AF10088 AF1343 PA5647 A25647 49069