Improve the aerodynamics in your vehicle with the Carbon Fiber Rear Roof Spoiler. Seibon is a well-known brand trusted and employed on many professional race teams on a worldwide circuit, and they are utilized by the everyday grassroots racer. This spoiler is also known as a vortex generator to some. These have been designed for vehicles that come factory with large rear spoilers, and it helps guide the air to hit the top surface of the spoiler deck lid for more controlled downforce. It installs on the end of the roof and these type of spoilers come factory on some vehicles. Now Sebon has a carbon fiber unit available for you. Paint it to match your vehicle, or simply leave it in the glossy carbon fiber finish.