The BMC panel air filter for Alpina D III 2.0 D Biturbo (2008 and later) is a direct replacement panel element sized to fit the original intake housing and restore filtration and airflow. It installs like the factory element for uncomplicated maintenance and is intended to replace the factory filter when due, preserving engine breathing and helping prevent contaminants from entering the intake.
BMC 2008+ Alpina D III 2.0 D Biturbo Replacement Panel Air Filter