If it is the piece that looks like #11 in the diagram Alex posted, I think I may have an extra. I will check once I get home from work.
Mine broke last year and I just took one from the passenger side until I could get a replacement.
2019 Dodge Challenger Hellcat Redeye Widebody: Plum Crazy, Loaded
2006 Lotus Sport Elise #9 of 50: Saffron Yellow w/ Storm Titanium stripes, K&N Air Filter, Pagid RS4-2 Blue, Nitron Doubles, Eibach Springs, Larini Sport Cat, Larini Sport Exhaust, Lotus GT4 Spoiler, Braille B2015, Xtender
(Sold) 2004 Chrysler Crossfire: Blaze Red Chrystal Pearlcoat
(Sold) 1994 Dodge Stealth R/T: Blue Pearl Metallic w/ Brilliant White stripes
(Sold) 1984 Dodge Daytona Turbo: Radiant Silver Metallic