Interesting subject there. does 10psi=10psi regardless of turbo. I guess the question should be can different turbos force different cfms of air into an engine at a set pressure. Will t2small flow 300cfm at 10lbs and 16G flow 350cfm at 10lbs of boost? Damn if I know for sure but I'm guessing a bigger compressor wheel (I know there is a compressor side and another side but don't get me started lying trying to be technical)will suck in more volume at a given pressure just by the wheel grabbing more air each go round. Damn if I know what effect the housing size has. And which flows more T3/4 or 16G? Hell there's how many 16G's: big 16G, super 16G, regular 16G and probably who know how many more. The T3/4 is a hybrid to begin with and can be configured to damn near any flow. Not to mention options like clipped wheels ect.