I have to admit those look very similar. i have not seen too many like that. Is there a specific model number/ step bar that is? I am guessing those mount in the very front/back of the bar, correct?
What turns me off typically from aftermarket ones is the sometimes they get an odd looking gap that is caused by the different mounting.
Edit: I can't tell but it looks like your mount like the same from the factory, i like the look, they are different from others that i've seen.