Yup....reuses the holes on the bottom of the rocker panels. Very easy. You just remove the plastic fasteners and use the bolts and nuts instead. You might have to fight a little to get the washers on the top side to sit flush. There isn't a lot of wiggle room. All in all, still pretty easy. Mounting to the frame is also very easy, as long as you have a good high-speed drill. Line it up, hold in place (I used a jack), drill away and use the Grade 8 bolts (no washers, they're already built into the head of the bolt). I used a 5/16 drill bit, and it seemed to work well. 7 out of 8 bolts bit hard and locked down firmly. One bolt anchored a little less firmly, but still seemed okay. Probably bored the hole a little less perfectly on that one.
Anyway, these things are great. Only one extremely minor complaint.....I wouldn't mind if they stuck out another inch. You can step on them to access the roof, etc., but they don't give you a good wide place to rest your foot like nerf bars. It's a little tricky, and you have to turn your foot sideways. Oh well....nothing major. They appear to be bombproof! Can't wait to find out.