Boost gauge is entertainment..... after spending the money I did on a blower I want to see it turn "on" and "off". The Ngauge is something a lot of guys are using to monitor and datalog. Personally I have a boost gauge, fuel pressure and an aeroforce to monitor everything else. I've also used the Torque Pro app, its a good tool and can read whatever your car will allow it to. I've now got navigation that also has provisions to run off the OBD II. I'm not going to be hooking it up..... I find gauges not in eye sight are not worth having..... and the last thing I need is my car to tell me this......