took my car to be dyno today came back with 385.8 bhp at the flyweel its running 0.95 bar boost got a hks intercooler the guys at this place were saying that the turbos seemed to take a long time to spool up giving them the impression that the turbos have either been modified or replaced with larger ones , they also said that standard turbos tend to lose guts approaching 15 psi but they said that mine seemed very strong going up to it . is it possible to produce that kind of bhp with standard tubbies ???? and what sort of bhp would you expect to get from standard turbos running 14 psi ????

what can the standard blowers boost up to then ???