The WRX/STI runs rich from the factory, and many of the aftermarket exhaust systems do not stick out far enough to prevent soot and heat damage from occurring. This Blacktop Aero Carbon Fiber Rear Bumper Heat Shield will hide blemishes and protect rear WRX/STI bumpers from getting burnt up. Coated with a heat resistant epoxy coating, our heat shields will reduce fading effects from UV rays and hot exhaust fumes and looks fantastic! Installation is very simple and completed within a couple minutes. Fits: Subaru Impreza WRX/ Impreza WRX/STI 2004-2007