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 : 88674 XA5420 CA8970 AF8970 AF1116 PA5420 A35420 46674, Kit Includes: 2x Air Filter, Kit Variations: K57-100552 K57-100843 K57-101130 K57-101383 K57-101763 K57-102143 K57-102523 K57-102903 K57-103283 K57-103663, Part Reference Numbers : 88674 XA5420 CA8970 AF8970 AF1116 PA5420 A35420 46674