ok honestly with this whole psi **** its funny reading on all this yes and no for it you can crank out higher hp with low psi IF the big IF you build the motor for it like valves/springs, cams, sleaved, port and polish, pistons, connection rods, everything and SPECIALY what alot of people lack is a light weight and balanced CRANKSHAFT and not just the exhaust even though exhaust is important to do, all those will make it easier for your car to provide more gain for the boost but on the same token look around alot of that is custom parts even for the beta 2.0 not to mention if you accualy build your motor like your supposed to you will be able to run more boost. what im getting at if your going to turbo your car and you want the most out of your boost than you got to spend some money youll be suprized how much building the motor will gain with a turbo. but ya hope that helps out and stops the fighting lol