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 : 83846 SEE XA5512 XA5785 CA10217 AF10217 AF1491 PA5785 A25785 49846, Kit Includes: 2x Air Filter, Kit Variations: K57-100365 K57-100664 K57-100951 K57-101443 K57-101823 K57-102203 K57-102583 K57-102963 K57-103343 K57-103723, Part Reference Numbers : 83846 SEE XA5512 XA5785 CA10217 AF10217 AF1491 PA5785 A25785 49846