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 : 83421 XA6130 CA10685 CA12041 AF10685 AF1560 PA6130 A46130 49421 49894, Kit Includes: 10x Air Filter, Kit Variations: K57-100272 K57-100403 K57-100699 K57-100986 K57-101748 K57-102128 K57-102508 K57-102888 K57-103268 K57-103648, Part Reference Numbers : 83421 XA6130 CA10685 CA12041 AF10685 AF1560 PA6130 A46130 49421 49894