Would be easier to add a programmer like the smarty, adrenaline, etc, that does that for you. I say this because I have no idea how to rig up the MAP sensor to tell the ECU it stopped at 20 or 23 PSI. Does the power puck provide boost fooling? I ask because I have no idea what it is or does. You would need an adjustable boost elbow to go over stock boost anyway, right?