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 : 87468 XA10330 CA10662 AF10662 AF1528 PA5694 A35694 42468, Kit Includes: 7x Air Filter, Kit Variations: K57-100172 K57-100372 K57-100671 K57-100958 K57-101457 K57-101837 K57-102217 K57-102597 K57-102977 K57-103737, Part Reference Numbers : 87468 XA10330 CA10662 AF10662 AF1528 PA5694 A35694 42468