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Old 01-12-2021, 02:17 PM   #13
NASIOC Supporter
Member#: 107618
Join Date: Feb 2006
Chapter/Region: Tri-State
Location: NY
2006 WRX Wagon
2009 FXT


Yeah, completely understand.

Personally, I think venting to atmosphere is a 'cop-out' for AOS' designed that way. Is it really doing it's job as an air-oil separator if it needs to VTA in order to ensure the intake track doesn't get blowby?

Good luck on your decision. You can't go wrong either way. But it does seem like you have a solution with the catch can addition.
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