The Genuine BMW Cold Air Duct Left - 64229112137 is a high-quality replacement part for BMW vehicles. It is designed to improve air flow and increase the efficiency of the engine's cooling system. This duct is specifically made for the left side of the vehicle and is made from durable materials to ensure long-lasting performance. It is an essential component for maintaining the proper functioning of the engine and ensuring optimal performance. This product is an authentic BMW part and is compatible with various BMW models.