now theres the zt2 and zt3...
so I'm guessing the zt2 is an older model and now superseded?
and I'd have to get the data logger as well for $99.....
Zeitronix Order Page : Wideband Engine Datalogging Systems and Accessories


As far as user inputs go - how many extra are available? I'm thinking you'd need at least 4 or 5?
EGT
SC cooling water temp
Air Intake temps pre charger
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