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 : 83017 XA6149 CA11114 AF11114 AF1479 PA6149 A36149 49017, Kit Includes: 10x Air Filter, Kit Variations: K57-100086 K57-100383 K57-100681 K57-100968 K57-101801 K57-102181 K57-102561 K57-102941 K57-103321 K57-103701, Part Reference Numbers : 83017 XA6149 CA11114 AF11114 AF1479 PA6149 A36149 49017