Just measured mine. Stock bumper sticks out 6" from the grille and has ~7" tall face. Based on winch measurements, I can see how it's impossible to not increase the size of the front face.
Note that my 4XG receiver sticks out 2.5" below my front bumper... thereby being equivalent to the bottom of the SA bumper. I don't see this being an issue with approach angle at all. And when i just went outside to take this picture, i think i just answered my own question of if the front guard will work. Actually looks like it'll be almost a perfect match...