37mm is TINY. (1.45") I seriously doubt you'd be satisfied if you saw it in person. I mean.. I have a fairly small faced watch and it has a 39mm crown!
I personally really like the location that this part fits in. I originally bought the glowshift set off Ebay with the clock pod.
It was ok, but I wanted a more stealth intall and I didn't mind loosing 2 of the three gauges. So I glassed over the vent nearest the driver and installed my boost gauge there. It's in a spot that is really easy to miss if someone is looking in, but is very easy to see when you are driving. The gauge I have is a 52mm so i tend to agree that the 37mm may be really small and hard to see. Notice that they don't show any pics of the view from the drivers seat?
I'll try to get some pics of mine here sometime, i really need to do that anyways.
If you wanted to do something custom, I'd be happy to work with you.
Here are some pics of the install that I did. It took a little time and I had to get an extra AC vent (just to have a spare) but I like the way it turned out. Except for the paint, I should have used a different type. I guess I am going to have to do it again someday.