My 1985 coupe has a rear valance with straight bottom edge (not turned back like most of them) with three studs attached that fasten to a shield between the bumper and the back of the engine (inside). I guess this is a "turbo" set of parts. The only other car I have found to have this is also a 1985. It is not a T-look. Are any others made with this set of parts? Is this shield needed? The combination of parts act as a "crap trap" inside the bumper, and all kinds of debris collects there.