Re: 3 dealers later... no one can find part number... PLEASE HELP!
I would be extremely surprised if you could find that piece of plastic as a separate part. It's just part of the headlight assembly.
Strange that your headlight has the holes for it but the piece isn't there. My passenger side headlight does not have the bumper support piece, but there's no sign of any way to mount it even if I were somehow able to find one.
'05 Stealth Grey CTS-V, 19x8.5/10" CCW T140s with Toyo Proxes T1 Sports (summer), black Team Dynamics ProRace 1.2 wheels with 275/35-18 R-compounds (track), Hyperblack Rota Torques (winter), KW Variant3s, V2 front brakes, Hotchkis rear sway bar, EPS cam, TEA-ported 243 heads, FAST92 intake w/LS2 TB, JBA Camaro/G8 1-3/4" shorty headers w/JBA cat pipes, Corsa exhaust, UUC motor and tranny mounts, UUC shifter, MAPerformance trailing arms, Specter cradle bushings, etc...