The Bilstein B6 2000 BMW X5 4.4i Front Left 36mm Monotube Strut Assembly is a high-performance suspension system designed specifically for the BMW X5 4.4i. It features a 36mm monotube construction that is specifically engineered to provide superior handling, increased ride comfort, and improved stability. The strut assembly is made from high-quality materials and is designed to be durable and reliable. It is also corrosion-resistant, making it ideal for long-term use. This strut assembly is an excellent choice for anyone looking to upgrade their suspension system and get the most out of their BMW X5 4.4i.