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 : 93050 XA10222 CA11712 AF11712 AF1642 PA9962 TA28168 A28168 WA10053, Kit Includes: 4x Air Filter, Kit Variations: K57-100213 K57-100386 K57-100970 K57-101441 K57-101821 K57-102201 K57-102581 K57-102961 K57-103341 K57-103721 KFL-100201 KFL-100807 KFL-101185 KFL-101793 KFL-102249 KFL-102808, Part Reference Numbers : 93050 XA10222 CA11712 AF11712 AF1642 PA9962 TA28168 A28168 WA10053