DNN Air Flow Meters

The carbon fiber airbox lids are both functional and handsome additions to the engine compartment. The weave perfectly matches the Dinan front strut tower brace for a very tasteful high-performance look. Dinan's High Flow Air Mass Meter and Intake Assemblies reduce the intake restriction presented by the stock configuration for a better breathing engine. Increasing the flow of cool, oxygen-rich air increases power output by 21 horsepower, as well as providing improved throttle response. The Dinan High Flow Air Mass Meters are also included, providing a full 22% increase in airflow. 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. Dinan High Flow Air Mass Meter/Intake Assemblies - 2006-2010 BMW M5/M6.