I have an 11 with the Aeroforce gauge. None of the GT500's will display boost on your gauge without an added boost sensor. I just got my sensor installed a couple weeks ago. You tap off the passenger side fuel rail - on the fuel pressure sensor. As for fuel pressure... I don't think the Aerforce gauge will read that from the OBD-II port if I'm not mistaken. I think you will need a sensor again.
Does anyone know if these (zPods) are still made or there is someone willing to sell one or make them (print them for instance)? If anyone happens to know where I can pick one or two up I'd be greatful.