Nozzle position

[Hening]

Hello,
I am newbie in this forum. I am about to install Aquamist 1s into Subaru WRX.
I am using after market Engine Control Unit that can choose either to use original Subaru Intake Air Temperature embeded with Air Mass Sensor which is positioned in front of turbo OR its after market ECU's IAT placed on intake plenum. My question is which IAT sensor should be used for the sake of best result using WI :??? .

Thank you for any discussion inputs and ideas

Hening