I bought an aftermarket right side wheel well splash guard for my 2011. I was able to get it mostly installed with connectors that I had or where already there, it's not a perfect fit, but it works.

Does anyone know a source for the U-Nut clip/clamp things that holds it on the outer edge of the side bumper (towards the front)?

I also can't figure out how to take them off on the other side of the car (in order to examine more closely). They have flat head push in expander things that look like you rotate to line up grooves and pull out, but it's not happening and I don't want to break any.

Thanks! (new owner... many more questions to come)

 

I ordered some of these, looks like they might work. Not sure how I didn't run across 'em during my search the other day.

 

Well, they are not a perfect fit, but they work. It could be just that it's an aftermarket splash guard. It clamps to the body panel very well and the splash guard slips in fine, but the holes don't line up to be able to push the pin in. I could probably mod it to make it work, but I'm gonna leave it without the pin and see how it holds. It seems fine. I realize no one cares, but I thought I would update.

The part number (53879) leads to some OEM ones on ebay, but I'm perfectly happy with the results. A new splash guard for about $35 total and plenty of connectors left over.

 

you won't break it. just turn it and vibrate it/wiggle it and the plastic screw will slide out, then just pull it out with your finger. then push the liner in with your thumb (hard). it will separate.