My tires are 12.5s. I do rub slightly if the wheels are turned fully either way, but it's barely enough to even rub the paint on the inside of the flare.
Here are pics of color matched Boss pocket style.
I am kicking myself for not getting these. I saw them at Summit Racing the other day for $250 a set. They were a display thing and discounted. I am sure they are gone now, I wish I would have got them.