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 : 83475 83651 XA6102 CA10690 AF10690 AF1429 AF1598 PA6102 AF6102 49475 49651, Kit Includes: 6x Air Filter, Kit Variations: K57-100233 K57-100349 K57-100648 K57-100935 K57-101445 K57-101825 K57-102205 K57-102965 K57-103345 K57-103725, Part Reference Numbers : 83475 83651 XA6102 CA10690 AF10690 AF1429 AF1598 PA6102 AF6102 49475 49651