I was actually installing the mud flaps when you sent this message. I got these off of Amazon.
The fit is good. They are made for these new MSs. No drilling needed, just replaces the push pins and I also used the metal clips on the back. I wish they would extend further inwards on the back as you can see in one of the pictures and also a little higher along the edge on the front. But I don’t if any mud flap out there goes any further beyond these. They feel pretty solid and hopefully stay on in the long run. I am now ready for my snowy drive for tomorrow.