This K&N drop - in air filter is perfect for BMW X5 owners from 2007 to 2010 who want to enhance their vehicle's performance. Whether you're a daily commuter or a weekend road - tripper, this filter will give your car an extra kick. It's easy to install in your factory air box. The filter uses a layered, oiled cotton media to work its magic. While exact dimensions aren't listed, you can be sure it's a perfect fit for your BMW X5's 4.8L V8 engine. Enjoy improved airflow and more power on every drive!