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 : 524490 SEE XA10006 SEE CA11477 AF220J A28174 WA10223, Kit Includes: 9x Air Filter, Kit Variations: K57-100014 K57-100594 K57-100883 K57-101170 K57-101272 K57-101652 K57-102032 K57-102412 K57-102792 K57-103172 KFL-100202 KFL-100824 KFL-101187 KFL-101795 KFL-102006 KFL-102565, Part Reference Numbers : 524490 SEE XA10006 SEE CA11477 AF220J A28174 WA10223