This GT3 style one piece tail base and deck lid is a GT Racing exclusive. It can be used on it's own or to support larger wing blades like the GT Racing "Predator" wing (part #426). Please specify if you are using this tail base for a 911 or 964. For 964 applications, you need to use hinge adapters (GT Racing part#11A). This decklid uses the stock Carrera, SC style grill not sold by GT Racing.