59ctd

Brand new to me 2008 Legacy 2.5i Limited. It is missing the driver side flap thing that is on the leading edge of the rear wheel. I am not sure what this is called though. it's not a mud guard since this is on the leading edge of the rear wheel/tire. My Mom's 2006 had the same issue with the plastic retainers coming out. I've got plenty of the plastic retainers to fasten it but this new to me car has one that is completely missing and I don't know what phrase to search for to find a new one. Maybe it is a dealer only item - (?). Thanks!