K&N Engine Air Filter Washable 33-3042 for BMW X3, X4, X5 2015-2018, 518D, 520D 2014-2017 KYB - Accessories Does NOT work with aluminum

Does NOT work with aluminum Dana 44 housings

Retains viscosity after high-temperature service for maximum engine protection and efficiency

manual transmission

Decreases the chance of ethanol separating from the gasoline

ensuring reliable braking power

K&N Engine Air Filter Washable 33-3042 for BMW X3, X4, X5 2015-2018, 518D, 520D 2014-2017 KYB - Accessories Does NOT work with aluminumHIGH FLOW ENGINE AIR FILTER Application: BMW X3 2014 2018 BMW X4 2014 2018 BMW X5 2015 2018 BMW 518D 2014 2017 BMW 520D 2014 2017 K&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and