Need to take flight anytime soon? 🛫 Joking aside, the R&D Team designed & engineered the Functional Aero Rear Wing Kit as an all-in-one solution to providing your car with more downforce necessary to improve rear tire grip for improved handling. The spoiler has an adjustable AoA (Angle of Attack) between 0° - 20° to perfect the downforce-to-drag ratio. Additionally, our end plates are designed to be adjustable for aerodynamic needs, not to mention the Delrin decklid shims provide a flat plane to bolt onto your trunk if it has a sloped angle. What more could you ask for? Search up ES#4509042 to find this beauty! #ecs #ecstuning #thisisecs #turner #bmw #bigwing #trunkwing #activeaero #aero #bmw #bigwinggang #bigwanggang