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 : 83049 XA6151 CA11170 AF11170 AF1523 PA6151 A36151 49049, Kit Includes: 9x Air Filter, Kit Variations: K57-100134 K57-100470 K57-100765 K57-101052 K57-101309 K57-101689 K57-102069 K57-102449 K57-102829 K57-103209 KFL-100056 KFL-100718 KFL-101135 KFL-101871 KFL-102059 KFL-102618, Part Reference Numbers : 83049 XA6151 CA11170 AF11170 AF1523 PA6151 A36151 49049