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 : 83468 XA10601 CA11422 AF11422 TA49061 A49061 49468, Kit Includes: 2x Air Filter, Kit Variations: K57-101449 K57-101829 K57-102209 K57-102589 K57-102969 K57-103349 K57-103729 K57-103978 K57-104071 K57-104164, Part Reference Numbers : 83468 XA10601 CA11422 AF11422 TA49061 A49061 49468