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 : 93887 XA10499 CA12085 AF12085 AF3208 AF1730 PA99111 A49146 WA10414, Kit Includes: 8x Air Filter, Kit Variations: K57-100028 K57-100614 K57-100903 K57-101190 K57-101481 K57-101861 K57-102241 K57-102621 K57-103381 K57-103761, Part Reference Numbers : 93887 XA10499 CA12085 AF12085 AF3208 AF1730 PA99111 A49146 WA10414