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 : 88195 XA5219 CA8069 AF8069 AF1041 PA5219 A35219 46195, Kit Includes: 4x Air Filter, Kit Variations: K57-100097 K57-100610 K57-101185 K57-101462 K57-101842 K57-102222 K57-102602 K57-102982 K57-103362 K57-103742, Part Reference Numbers : 88195 XA5219 CA8069 AF8069 AF1041 PA5219 A35219 46195