I got my F1 airgap installed and will measure the mpg's for the next couple of tanks. Already, I can feel this airgap intake makes as much power or little more than my hyper tech at 93 octane with stock kegger.

Right now, I am running stock programming as I am selling my Hypertech. The Durango pulls hard as it is advertised in the mid to upper power range.

I am waiting for my SCT tuner to arrive from Hughes so I can reprogram my PCM to maximize the use of the AirGap intake.