marc...the egt probe is wired directly into the computer and the gauges are downline, unlike a normal probe which connects directly to the gauge, the computer provides egt safe guards as long as the speedloader is installed... thing is,the gauges come with the kit so why arent they on it? they can however be added later as a simple plug in...banks also recently upgraded to a pda controller which does not use gauges but instead dispays on the pda, but dont know too much about that