Proper airflow is crucial to an engine’s performance. When it comes to a precisely engineered automobile like the Range Rover Sport Supercharged, every bit of optimization will help you get the most from your engine. That’s why we provide these BMC F1 replacement air filters. They fit perfectly in the Macan's OEM air boxes and are built with the highest quality materials.
Starting with its outer frame, BMC uses a special soft rubber material made in a process called "full molding", which not only provides a much tighter seal around the filter, but also eliminates any potential cracking or breaking of the filter. The filter element itself is made of a washable cotton material that provides nearly 40% greater airflow than paper, enclosed in an alloy mesh screen which helps the filter keep its shape and protects against larger debris and dirt. The increased flow of air through the filter provides a steady stream of clean air to the engine, resulting in much more consistent and efficient power.
The filters seem to be high quality. Shipping was fast. The BMC instructions are not Macan-specific so they are pretty much worthless. Had to go onto Macan forums to read how to replace the stock air filters. Also the instructions do not state whether or not they recommend replacing the stock plastic covers after the BMCs are installed--I've seen BMC applications where they are exposed. I presumed that the covers were meant to be replaced to ensure that air flow is directed into the compartments so I installed the BMCs and replaced the stock plastic covers.