Originally Posted by 06SE
Flapatax does not currently make a set specifically for the 12+ Impreza. I inquired ~1 month ago. He said it's on his list though.
According to the ebay listing, these will fit. I'll let you know.
Keep in mind fitment is about the placement of the screw holes and how it mounts on the car. I would bet the basic pattern and size of the mudflaps is the same for all the flaps they make. This is also probably true for Rally Armor.