but am sure it only does the boosting problem when its cold! But i noticed it did it when my mate changed the vag lines cos the n75j doesnt look how the old one sat in place tho hence i would like a pic on how they should fit in place cos when it boost 15psi one way i set i up it doesnt do the boosting thing
 
so is it worth putting the standard n75valve back in?
I might be selling the car very soon i hope!