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  1. Superchargers
    Hello everyone. I just changed my Supercharger coupler due to a rattle/rock noise. At first the noise went away, but now only a week later the noise is back. I also have what I think is a leak but have not been able to pinpoint it yet. My question is has anyone changed a coupler and if so...
    coupler supercharger
  2. Superchargers
    As I am doing my lower intake and valve cover gaskets right now, I was having boost issues before with only getting around 4-5 psi at WOT. I have checked for belt slip, BBV seems to work but actuator move half way not touching housing, checked all the vacuum lines no cracks, not sure about if...
    boost coupler issue low m90
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