Just got my dmax because of an accident couple of months ago. Found my old hypertech and called them. They told me that if I sent my old one in that for $200 bucks they would give me another one off the shelf. Not working right now so it may be awhile before I can save up for what I really want(edge) but for that is the hypertech worth it?

Get an used Juice off Ebay... for 100$ more you'll be pleased. Buy the Attitude monitor later.