BMW M140i / M240i / 340i / 440i B58 Armaspeed 3D Panel Air Filter

This Armaspeed replacement air filter for BMW M140i / M240i / 340i / 440i B58 has a 3D design to maximize space utilization and to amplify the cold air storage into the airbox, resulting in excellent air intake efficiency. Made from 3 levels of foam density for greater filtration, the washable and reusable Armaspeed 3D filter features an anodized aluminium frame for better strength and durability.