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 : 93869 XA10498 CA12050 AF517J AF1715 PA99116 A39183 WA10417, Kit Includes: 9x Air Filter, Kit Variations: K57-100099 K57-100368 K57-100667 K57-100954 K57-101353 K57-101733 K57-102113 K57-102493 K57-102873 K57-103253, Part Reference Numbers : 93869 XA10498 CA12050 AF517J AF1715 PA99116 A39183 WA10417