+1 as long as your motor is up to spec before the turbo. hint: do an indepth tune up. I have to replace the rings on my b16, I put the turbo on and wasn't getting the boost response I should have. come to find out bad rings, the results..... I spent a lot of time installing and tuning the system only to not be able to drive it after just 2 weeks with the turbo on. the turbo didn't do anything to the motor, the motor was already wearing out, but the frustration and emotional let down if a nut buster, not to mention the oil leaking past the compressor seal made one hell of a mess.

in short, make sure the motor is good shape first, then it will take 12psi all day ( I was runnig 10psi, or was trying to get to 10). if the motor is on it's last leg then fix it first.

stock internals have been used up to 15psi with good tuning, I wouldn't go higher than 12psi just to be safe.