Hey peeps I have seen some WG threads but dont want to thread jack them so started my own. I am using the bottom port setup with N75, and Im experiancing overboost thou. Would a stronger spring be needed for increase cracking pressure? Im on a 9 psi spring, my boost request is 2200mbar and my actual boost is 2400mbar. My N75 pressure source is from the 6mm nipple under the intake manifold, would this effect my setup at all as its still giving positive pressure under boost? Cheers Note: I have corrected by boost request line in my software, same effect.