The Stage 2 would be most fitting, only thing differant is you have an upgraded topmount, the Maps all have descriptions of what mods there to be used with, if you do have the corrisponding mods, then do not run ant OTS tune, Im sure a small differance like haveing an Intake+TIP would be fine for an OTS made for just an intake, or perhaps your TMIC with a stage 2, try at your own risk. And Data Log...
Best advice, Datalog you current set up in 'Stock Installed' mode and see how your Fuel pump is holding out, and if you feel comfterble, try out a stage 2, other wise, find a protunner