I saw a thread the other day about gauges and it reminded me to show ya'll a gauge lineup that I think is really awesome:
AEM Electronics has been making tuning related products since many of us were playing with matchbox cars. It's no surprise then that they make a few lines of very nice precision gauges for monitoring crucial engine data.
My personal favorite models right now are their "Analog Face Digital Gauges".
The faces have "Analog pointers" so they are easy to read at a glance but the body and internals are all fully electronic for reliability and precision. In addition to the lab grade sensors and very accurate stepper drive motors they also have highly customizable face options. Each gauge comes with multiple "Face plates" that you can exchange and variable LED color output with 7 different colors possible. (This is especially helpful if you are trying to match the amber or green of the older model STI or WRX stock gauges!)
These are a really great value for a full digital gauge not to mention all the customizable options. Since I like you guys though, we'll give you a discount on the most popular gauge: the 30/30 vac/boost gauge.