Dinan 06-10 BMW M5 High Flow Air Mass Meter/Intake Assemblies

The stock air filter housings are replaced with Dinan’s larger volume units that have been designed to accommodate oval-shaped filters, providing greater surface area for superior flow. The intake enclosures also include the activated carbon absorption material, providing the same function as the stock configuration without the significant restriction to airflow. The Dinan air boxes are completely sealed enclosures, virtually eliminating the pressure drop measured with the stock units. The sealed enclosures also insulate against power-robbing heated air under the hood for maximum power output.