I have seen other cars with it, but I can't seem to figure out what the heck it's called to even look it up. All of them I have seen are in carbon fiber (or plastic look-a-like). It's a piece that fits in the exhaust tip exit cut out area on the rear bumper while allowing the exhaust tips to protrude still. I have searched 'exhaust tip cover', exhaust tip shroud, rear bumper diffuser, and many others to no avail.