2013-2014 Ford Mustang Shelby Unpainted Black Rear Bumper Diffuser PPBumper lips are designed not only enhance the visual appeal and functional benefits, but also protects your original bumper from road bumps and scratches. Crafted with precision and utilizing high quality materials, our bumper lips are effectively maximizes the aerodynamic attributes. By optimizing airflow and reducing lift, it improves aerodynamics and enhances high speed stability, allowing your vehicle to unleash the full potential on the road. Get