Mann air filters remove destructive particles such as dust, pollen, sand, soot or even drop of water out of the intake air. They ensure that only clean air gets into the combustion chamber. Mann air filters also prevent damage caused in various ways to electronic components such as highly delicate sensors (hot-film air flow meters). Mann air filters have other important functions. The eponymous spiral wound strap ensures consistent pleat distances and protects the filter element from becoming deformed by forces during installation or operation. Features and Benefits: OE Equivalent and a Direct fit Application Improves performance and fuel economy Guarantees optimum control of the fuel-air mixture Prevents abrasive particulate matter from entering the engine