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 : 88302 XA4880 CA7597 AF7597 AF209 PA4880 A24880 46302, Kit Includes: 12x Air Filter, Kit Variations: K57-100219 K57-100528 K57-100820 K57-101107 K57-101198 K57-101578 K57-102338 K57-102718 K57-103098 K57-103478, Part Reference Numbers : 88302 XA4880 CA7597 AF7597 AF209 PA4880 A24880 46302