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 : 83120 XA6306 CA10359 AF10359 AF1322 PA6306 A26306 49120, Kit Includes: 11x Air Filter, Kit Variations: K57-100246 K57-100439 K57-100735 K57-101022 K57-101240 K57-102000 K57-102380 K57-102760 K57-103140 K57-103520, Part Reference Numbers : 83120 XA6306 CA10359 AF10359 AF1322 PA6306 A26306 49120