it all depends guys. you are forgetting that different turbos are effective at different ranges. the stocker is said to be good till about 16 psi before its diminished returns (i ran mine at 18 before i got a bigger turbo) and my sp61gt came with the 1 bar WG.
14 psi on a CT26 != 14 PSI ON A SPG1GT != BOSS550 @ 14 psi
14 psi on a CT26 != 14 PSI ON A SPG1GT != BOSS550 @ 14 psi