If you're a car enthusiast who owns a 1991 - 1996 Chevrolet Corvette C4, this rear lip under spoiler air dam is perfect for you. It's designed to enhance the look of your car while also improving its aerodynamics. You can use it during regular daily drives or when you're showing off your ride at car meets. Made of FRP material, it's durable and lightweight. The single - piece design makes it easy to install with professional help.