V3 here and worth every penny to me. I got it for about $625 shipped if I remember. Installed it myself.
Also, Jeff's thread and help is awesome. I have had zero problems with my Dynavin so far. I think some people expect way too much out of it. For $600 and something that looks OEM, you can install yourself.....find a cheaper better option than that.
2006 M5 E60, "Lord Vader" Last real NA M series
German Car Fanatic. Colorado ///M Flight member, BMW CCA member.