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 : 83876 XA5823 CA10330 AF10330 AF1348 PA5823 A65823 49876, Kit Includes: 9x Air Filter, Kit Variations: K57-100132 K57-100440 K57-100736 K57-101023 K57-101226 K57-101606 K57-101986 K57-102366 K57-102746 K57-103126, Part Reference Numbers : 83876 XA5823 CA10330 AF10330 AF1348 PA5823 A65823 49876