Yeah what JP said. I cant see them doing anything useful the way they are mounted. The mounts on the diff are supposed to be on the top of the housing not the bottom. You have to remove the factory sway bar mounts to fit them.
The bars themselves are right and the chassis mounts but the supposed purpose is to stop the diff tilting forward and back and axle tramping. There is no way they could do that fitted like these are.
For the record, you are probably better off without them and fitting a decent set of leaf springs but that will trigger a whole lot of contrary debate so there you go ....
Back to the original point - Nice looking exhaust