The Rear Deck Spoiler is an aerodynamic component that can be used alone or in conjunction with other aerodynamic components to improve the overall efficiency of a vehicle's aerodynamic package. The APR Performance Rear Deck Spoiler integrates with the vehicle's rear deck to: - Reduce rear-end lift and increase high-speed cornering grip (the magnitude varies depending on a vehicle's shape). - Increase downforce and reduce drag when used with other aerodynamic components (i.e. rear wing, rear diffuser, etc.).