For those who self-tune and you have this sensor, this is the calibration you need to use:
Multiplier: 90
Offset: -5
So in Versatuner you can set the Base Multiplier to 90, Second Multiplier to 1 and Offset to -5.
I've seen a lot of calibrations flying around from various tuners (which I'd expect to know better, but for some reason they do not care) and they were all wrong by a lot (based on min/max MAP values assuming they were always at 0.5 and 4.5V, which is not always the case).
Bosch 4BAR MAP sensor 0281006102
Bosch 4BAR MAP sensor 0281006102
2008 Cosmic Blue Mazda 3MPS
Built engine + WMI + GTX3071 gen2, ~550BHP @35PSI
2008 Icy Blue Mazda CX7
Built engine and stock exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 360-ish BHP
Built engine + WMI + GTX3071 gen2, ~550BHP @35PSI
2008 Icy Blue Mazda CX7
Built engine and stock exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 360-ish BHP