prepare for weather change tuning.
I wouldn't say there's that much difference. Trust me, after racing my MAF based system for 20 years in all types of different weather and altitude conditons, the MAF based system does NOT compensate for weather much better than a well setup speed density system. Especially if you understand where the compensation factors come into play and how they're used.
But the beauty of this system (Translator Pro) is, it still uses the stock ECM and chip setup. That means the stock ECM is still using a MAF based input to control things.
The Pro replaces the MAF with a sophisticated speed density calibrated system with temperature compensation, and across the board WBO2 tracking, and then sends a signal to the stock ECM that it thinks is a viable MAF signal. And of course to make use of all the flow capability of a "built" setup, the Extender Pro chip can now recieve and act on any MAF flow rate up to 768gps of flow!!
Now, if you're on a budget like me and can't get all the pieces right away, you can run the system with the stock O2 sensor like I'm doing right now.
And you can even still run a MAF if you want. It's totally flexable.
The GEN II has almost all the features of the Pro except that the GEN II can't do speed density and is thereby a strictly a MAF based setup, but has WBO2 tracking.
The regular Translator is of course the regular Translator. BASE and WOT fuel (assuming an extender chip).