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 : 88873 XA5534 CA9681 AF9681 AF9861 AF1240 PA5534 A35534 46873, Kit Includes: 3x Air Filter, Kit Variations: K57-100310 K57-100833 K57-101120 K57-101502 K57-101882 K57-102262 K57-102642 K57-103022 K57-103402 K57-103782, Part Reference Numbers : 88873 XA5534 CA9681 AF9681 AF9861 AF1240 PA5534 A35534 46873