Originally Posted by Jon@Altered

Yes, most of the JDM temp gauges measure temperature in Celsius, not Fahrenheit like most of us are used too. And most Japanese boost gauges read boost in bar/kPa, but if you know the conversions, you'll be able to read it just fine. Essentially, the table goes like this:
1 bar = 14.5 psi
1 psi = 0.06895 bar
1 psi = 6.89KPa