Weather National Oceanic and Atmospheric Administration Verus Engineering Swan Neck UCW Rear Wing Kit. The UCW Swan Neck Rear Wing is a great addition to your Mk5 Toyota Supra to increase downforce significantly in the rear, increase confidence on track, and reduce lap times. By utilizing the goose neck style wing mounting, we increase efficiency and performance from our UCW bottom mount unit. The part is designed to work on the factory trunk and handle the downforce well, the rear wing bolts on easily and improves performance this sports car can utilize on track. Utilizing state of the art analysis software during the R&D process, we optimized the airfoil for performance for the given build volume which is derived from the V1X. Further utilizing CFD, we ensured the rear wing sees adequate airflow while installed on the car and performs well. During the design process; we utilized in house scan data. This results in a product that features a near OEM fit and finish. The UCW Rear Wing is the perfect addition to the track goer who requires a large bump in rear downforce to balance out a significant front aero package. UCW Wings are assembled per order and will ship within 5 business days from receipt of order unless otherwise specified.