I just bought some digital gauges from
Nordskog Performance for my SRT. I'm going to mount them in a Mustang gauge pod that will mount on the dash right above the vents in the center. I choose the green lit gauges with the silver bezels to somewhat match the existing color scheme. I order an air intake temp gauge to work along side a boost gauge that way I can see if there are any imminent problems with the intercooler water pump. Attached are some pics from their respective websites. I will do a write up once I receive them and do the install.
I have found out from an individual named Vadim on the MB forum that the ECU shuts the supercharger off when the factory air intake temp reads 225ºF.