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 : 83235 XA6318 CA10693 AF10693 AF1398 PA6318 A16318 49235, Kit Includes: 7x Air Filter, Kit Variations: K57-100141 K57-100582 K57-100871 K57-101158 K57-101254 K57-101634 K57-102014 K57-102394 K57-102774 K57-103534, Part Reference Numbers : 83235 XA6318 CA10693 AF10693 AF1398 PA6318 A16318 49235