K&N replacement High-Flow drop-in air filter for BMW 740i L4 3.0L forced-induction engines covering 2015–2018 model years. The washable, reusable layered oiled-cotton media is engineered to improve airflow while capturing contaminants and is designed to last the life of the vehicle. It installs into the factory air box and is backed by K&N's No-Hassle Lifetime limited warranty.
K&N 15-18 BMW 740I L4-3.0L F/I Replacement Drop In Air Filter