The aFe MagnumFLOW Air Filters OER PDS A/F PDS BMW X5 01-06 L6-3.0L is a high-performance air filter designed to provide maximum protection for your BMW X5. This air filter features a Pro 5R oiled 5-layer progressive media which provides maximum flow and performance. It is designed to provide maximum engine protection and improved engine performance. The filter is also designed to last up to 50,000 miles and is easy to clean and maintain. This air filter is designed to provide superior protection and performance for your BMW X5.