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Hey guys so I have a 2017 Wrx and I’m making boost but my bov isn’t making any noise, could it be the spring going bad?
 

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It shouldn't make much noise because it should be set to full recirculation. I would sell the aftermarket one, reinstall the factory one, then put the money into some investments.
 

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Hey guys so I have a 2017 Wrx and I’m making boost but my bov isn’t making any noise, could it be the spring going bad?
Check if the vacuum line connected to the bov is well connected(also check for cracks). If boost pressure drops while accelerating then the bov spring mechanism might be faulty and allowing air to pass through.
 
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