Rear Diffuser Kit V7 specially designed and tested for the Dodge Challenger 2015 to 2025stock rear bumper. Benefits: Increased Downforce. Better stability at high speeds. Improved aggressive look. No special tools are needed. No need to remove the rear bumper or diffuser for installation. We only use the best materials, in this case is an Aluminum Compound for added strength and weight saving. *** All hardware needed for installation is included ***