I'm curious about this myself. I will be sending my current SGII in for update this fall. Right now it is too important to me in my turbo diesel work truck monitoring I.A.T., Coolant Temp,Trans.Temp,and alt.output. It does not monitor boost levels for me as it is. I have other device for EGT's and Boost. Perhaps another Forum Member could send theirs in sooner for the free update and let us know. If not, I will report my findings in a couple of months. As I posted before; I tried to get the answer from them about reading boost in the SRT, but they couldn't confirm. There seems to be only one way to find out. Bob