APR Performance Carbon Fibre Rear Bumper SkirtsAPR Rear Bumper Skirts are the next step to help aerodynamically tune the handling of a car. Made of lightweight and durable carbon fiber composites, APR Rear Bumper Skirts help reduce lift at high speeds by preventing air at the sides of the car from rolling underneath the car. The reduced lift helps to stabilize the car during high speed cornering and helps to increase traction for faster lap times. Features: Carbon Fiber Construction All APR Rear