I'm either lucky or crazy or both. One of the first things I did when I got home with my truck was disconnect the waste gate vacume lines. The stock turbo even when chipped up won't make enough boost to hurt anything. I have two 100,000mi trucks with 100hp chips that have run this way since new. My hardest pull was for about 10mi 30 to 40psi with ICP controller up all the way and 850 degree EGT. You should see my sons Cummins. at a full throttle thru the gears his gauge goes from 0 to 60 at each shift.