APR Carbon Fiber Rear Deck Spoiler 2015-up Dodge Challenger HellcatThe 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 to your 2015 up Dodge Challenger Hellcat. 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