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 : 83933 XA5670 CA10228 AF10228 AF1318 PA5670 A35670 49933, Kit Includes: 7x Air Filter, Kit Variations: K57-100163 K57-100405 K57-100701 K57-100988 K57-101484 K57-101864 K57-102244 K57-102624 K57-103004 K57-103764 KFL-100297 KFL-100678 KFL-101280 KFL-101382 KFL-102311 KFL-102870, Part Reference Numbers : 83933 XA5670 CA10228 AF10228 AF1318 PA5670 A35670 49933