aFe Magnum FLOW Pro 5R Air Filter for BMW X3/X4 M40i (G01/02) 3.0L Turbo - Part #30-10422R

* Five layers of pre-oiled cotton gauze media for maximum performance * Progressive layering allows high flow even when dirty * Easily recharged with aFe POWER CLEANER and blue air filter oil * Rounded, evenly spaced pleat design for increased surface area * Conforms to uneven filter housings for a perfect seal * Full 360-degree polyurethane frame maintains shape after heat cycles * Suitable for street and track use * Replaces stock filters for improved engine airflow and filtration efficiency