ADDCO VS. PST Rear Sway Bar

The parts are arranged differently in the photos, but looking at each piece individually, they look identical. One difference might be that PST supplies polyurethane bushings (since they sell a lot of these), while AFAIK Addco supplies rubber bushings. I have the older style Addco kit as shown in some of the other photos (and their front bar as well). Poly might be a little harsh on the rear bar... depends on how hard-core you want to be. Might be worth asking them.