Found this in another, veeeerrrry similar thread:
Originally Posted by ParkedWRX
Fml gonna check for cracks on my '11 tomorrow. And somehow my fender liner on the front passenger side lost a clip and it got loose and got chewed up by the front under where it attaches to the bumper. Had to buy a new one at the dealer for $67 with all the clips. Now this has me wondering as to why it got loose.
I don't know if it's the same thing as what we were talking about, but sounds like it could be. You might wanna mine that thread for info - http://forums.nasioc.com/forums/show....php?t=2108977