http://www.superturbodiesel.com/std/thread-enginesystemsmanagement
Mind you its a very expensive boost gauge but a lot of things are to come. I have a max6675 shield and my EGT sensor is already in the manifold. Just need to get a good housing, power source and mount the denso boost sensor in the stock location. For us non ODBII people this is a fun project. For you ODBII people they make BT android and iphone plugins for ~$100