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 : 83016 SEE XA5396 CA10516 AF10516 AF1446 PA6121 AF6121 49016, Kit Includes: 7x Air Filter, Kit Variations: K57-100135 K57-100488 K57-100781 K57-101068 K57-101311 K57-101691 K57-102071 K57-102451 K57-102831 K57-103591 KFL-100055 KFL-100719 KFL-101136 KFL-101873 KFL-102061 KFL-102620, Part Reference Numbers : 83016 SEE XA5396 CA10516 AF10516 AF1446 PA6121 AF6121 49016