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 : 88017 XA4690 CA7351 AF7351 AF987 PA4690 A24690 46017, Kit Includes: 6x Air Filter, Kit Variations: K57-100109 K57-100480 K57-100775 K57-101062 K57-101287 K57-101667 K57-102047 K57-102807 K57-103187 K57-103567, Part Reference Numbers : 88017 XA4690 CA7351 AF7351 AF987 PA4690 A24690 46017