Thread: build help
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Old 08-19-2007, 02:03 AM   #2
Scooby Specialist
Member#: 68709
Join Date: Aug 2004
Chapter/Region: AKIC
Location: Kenai Peninsula, AK
2012 WRX


I'm not to that point yet in my build, but I'm sure you are referring to an extra crankcase vent on the 2.5 block. Some folks just plug it and some have been plumbing it into the PCV hoses. There doesn't seem to be any evidence that plugging it causes any problems.....yet.
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