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 : 97030 XA11703 CA12551 AFJ010 TA31489 A31489 WA10947, Kit Includes: 10x Air Filter, Kit Variations: K57-101909 K57-102289 K57-102669 K57-103049 K57-103429 K57-103809 K57-103933 K57-104026 K57-104119 K57-104212 KFL-101900 KFL-102379 KFL-102938 KFL-103049 KFL-103228 KFL-103407, Part Reference Numbers : 97030 XA11703 CA12551 AFJ010 TA31489 A31489 WA10947