The Genuine BMW Air Filter - 13721730449 is a high-quality air filter designed specifically for BMW vehicles. It is made from durable materials and is designed to effectively filter out dirt, dust, and other contaminants from the air entering the engine. This helps to improve engine performance and fuel efficiency, while also protecting the engine from potential damage. The air filter is an essential component of the vehicle's air intake system and should be regularly replaced to maintain optimal performance. This Genuine BMW Air Filter is an authentic OEM (original equipment manufacturer) part and is compatible with select BMW models.