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Discussion Starter · #1 ·
Does anyone have the Greddy Relief Valve or HKS Pop Off Valve installed in their car? They are a safety device that protects your intake manifold and engine from overboosting. I need help in setting the relief point. I want to set the psi to around 22-25 psi before it opens. Is there a way to do this without having to boost that high and listening to it opening? Thanks.
 
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