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 : 97354 TA61530 A61530 WA11100, Kit Includes: 2x Air Filter, Kit Variations: K57-101516 K57-101896 K57-102276 K57-102656 K57-103036 K57-103416 K57-103796 K57-103988 K57-104081 K57-104174, Part Reference Numbers : 97354 TA61530 A61530 WA11100