Read up a bit on Hp tuners vehicle control module and was wondering if anyone has used one on there G6 for tuning. From what I read it sounds like a good tuning scource and may be able to help me in my goal of turbocharging and tuning my 3.9 GTP. I know thats a shot in the dark since no one has succesfully turbocharged the v6's yet due to tuning issues. Just asking if this could possibly be a cure? My goal is only 300-350hp and thats doing including all the internals and that good stuff. i have heard these fuel systems are returnless?