stock would ramp in the boost and RIGHT at peak RPM it would hit 16psi for like 1sec. mine was tuned to basically 18psi all the time. the only smoke from mine was a bad PCV that would fill the intercooler with oil. then when i'd get to ripping on it she'd suck that oil up into the intake. had an oil separator on it for a while, but was too much trouble to empty it that often. so instead i just stopped changing the oil and added some now and then. haha