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 : 83344 XA5788 CA10500 AF10500 AF1436 PA5788 TA45788 A45788 49344, Kit Includes: 5x Air Filter, Kit Variations: K57-100270 K57-100327 K57-100626 K57-101202 K57-101582 K57-101962 K57-102342 K57-102722 K57-103102 K57-103482, Part Reference Numbers : 83344 XA5788 CA10500 AF10500 AF1436 PA5788 TA45788 A45788 49344