Quote: Originally Posted by
coparthn 
whats the diference pro n not pro? gauges?
not pro was the first version
second version was pro
and now third version is SR for srt
not pro had the stand obd value plus knock
second version has more stuff, barometric pressure, air temperature,tps volts,knock volt,base timing,timing adjust,mpg,hp and some other
sr version don't know all the new value close and open loop for sure
but now you have the shuffle option: you can choose 8(not sure) value and make them shuffle on the screen at a rate you choose
and now you can take one of the value and light up the led to warn you at a level you choose
normally you can upgrade to the latest version (for a small fee)
the SR version can be upgraded on gage built after july 07 (hardware change)
thats about all i remember