Bah, get a P3gauge. I love mine- and you don't end up losing an air vent. I think Howard already covered it though
It isn't cheap at around 400 clams, but the data it yields makes up for it in value for me.
It gives me all the data I need- among just a few, coolant temp, IAT, exhaust gas temp, battery, boost, 0-60 times with logging, and speed- and that is what I care about. The display color matches our OEM dash display 100% too- and you can set it to dim for night driving, AND you can download and save the data (though I haven't and would like to learn how one day.)
Pics of it in action are in one of my recent posts to a kind fella a few posts down sharing his 0-60 times
