Are you all talking about the valve that goes in the line or "tube" thats on the waste-gate? I'm confused about "setting the boost" because I just cut the tube, put the valve in and tighten the two hose clamps. Maybe this is not what your talkin about but it might of give me about 4 or 5 pds of boost, not the 10 pds like the paper said it would.
are you talking about some kind of blow off valve?
if so can anyone explain to me if its a blow off valve or a diverter valve i keep hearing on trucks in videos i watch.
He is talking about the PPE Boost valve. It goes the wasteagte line. It has a hole drilled in it to bleed a small amount of boost. This causes the wastegate to open slower which means more boost.
What you most likely hearing on those vids if they are pulling vids is turbo bark not a blow valve.