hondata 2b?

Well for my computer issues and turbo addition i was looking at the emanage and aem system and both have been ruled out for numerous reasons. it seems that most are running with the hondata 2b. so i was wondering if you guys could help me out with some info such as prices and what it actually does and helps out with when adding boost. Would i still need something to trick that damn MAP sensor or does this take care of it. I went to the website and it says it must be tuned by a dealer. Also I have an obd II, would that make a difference? Do I need to get the adapter to OBDI? Thanks