Originally Posted by myblusti
you can port the opening. what do you mean its only running at 75% ? if its running at 75% then you should have a safety margin of 25% before you need to replace it. how much boost are you running? are you having boost creep issue's?
My AP reads 75% work load at full throttle, with a stage 1 tune I'm only pushing around 8 psi, if I run the high waste gate tune then I can get it up to 9 psi but no higher