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 : 97363 XA11686 AFJ001 TA31543 A31543 WA11153, Kit Includes: 5x Air Filter, Kit Variations: K57-101569 K57-101949 K57-102329 K57-102709 K57-103089 K57-103469 K57-103849 K57-103878 K57-103971 K57-104157 KFL-101899 KFL-102463 KFL-103022 KFL-103048 KFL-103227 KFL-103406, Part Reference Numbers : 97363 XA11686 CA12954 AFJ001 TA31543 A31543 WA11153