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      07-19-2019, 11:33 AM   #11
ottawa_f30
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Drives: 2013 328x
Join Date: Dec 2017
Location: Ottawa,Ontario

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Quote:
Originally Posted by sspade View Post
Hmmm. I hear what you're saying. There's only so many possibilities and it definitely sounds like its coming from engine air intake / turbo induction systems...

I wonder if you're stock diverter valve has taken a dump. They are largely made of plastic and known to fail under stock boost over time, let alone increased boost pressures.

The GFB DV+ would be a nice upgrade and reasonably priced at under $150 shipped. Might be worth a try.

Interested to hear if anyone else has any ideas.
Done just got the exact one you recommended. I will keep the thread updated
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