This rear diffuser is designed for car enthusiasts who own a 2014 - 2018 BMW X5M F85 or X6M F86. It's perfect for those who want to enhance the look and performance of their vehicle. Whether you're driving on the street or taking your car to the track, this diffuser will make a statement. The diffuser is made of carbon fiber, which is known for its light weight and strength. It comes in a sleek Rover style that will give your BMW a more aggressive and sporty appearance.