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 : 83053 XA5583 CA10092 AF10092 AF1297 PA5583 A35583 49053, Kit Includes: 10x Air Filter, Kit Variations: K57-100245 K57-100447 K57-100743 K57-101030 K57-101637 K57-102017 K57-102397 K57-102777 K57-103157 K57-103537, Part Reference Numbers : 83053 XA5583 CA10092 AF10092 AF1297 PA5583 A35583 49053