Ebay GT45 + 5.9 Magnum + E85 blow thru

Was the 2 step feature recently added to fitech? And did you have to buy anything else besides a switch to make it work?
It's a fairly recent addition, but not sure when it came out. I just had to install the new ecu firmware and software on the hand held and then wire up a switch that puts +12v on the AC wire to activate it. I have mine spliced into the brake light for now. You have to contact the Fitech support to get the firmware. There are two different version for the 1200PA depending on how old your unit is.