I just installed this BOV today and I honestly cant tell much of a difference in sound if any at all. I am sure this is a newb question and I apologize for it. Ive tried adjusting the top screw and it didnt seem to make a difference. My car is stock with the exception of this piece. Should I notice any difference? Thanks in advance for the help!
I have one. Most of the time this valve recirculates unless you are running higher boost which pushes the piston past the VTA port. Adjusting the screw on top adjusts the preload for the valve and has nothing to do with the sound.