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 : 83158 XA6145 CA10867 AF10867 AF1527 PA6145 A46145 49158, Kit Includes: 5x Air Filter, Kit Variations: K57-100198 K57-100419 K57-100715 K57-101499 K57-101879 K57-102259 K57-102639 K57-103019 K57-103399 K57-103779 KFL-100029 KFL-100706 KFL-101283 KFL-101647 KFL-102335 KFL-102894, Part Reference Numbers : 83158 XA6145 CA10867 AF10867 AF1527 PA6145 A46145 49158