Rob,I ordered a set. I did some research and found the manufacturer in San Diego. I gave them a call and spoke with one of their customer service reps. I wanted a set without any decoration, painting or machining / engraving. After a short discussion they agreed to build me a set. They gave me a credit for the work they did not have to do, so the price was basically the same "discounted" price that the list them at on their web store.
I got them in finished but unpainted condition. I took them to my painter and had them matched to the Punisher. If you go to the Punisher thread there is more info on installation and more pics but here are a few.
I have not been able to put any miles on them yet, but they are installed and on the car. The hangers are stainless and well made. I expect they will perform very well.
I chose them for visual impact not expecting any performance enhancement. I painted my calipers in 2007 with caliper epoxy paint. It held up well but its beginning to show its age. I was going to have to repaint them or get covers. The covers offer a stronger visual statement at shows and just look custom.