valve cover breather

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Feb 17, 2012 | 07:07 PM

carlosc04

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valve cover breather

do valve cover breathers really help? are they worth it?? if so which one do you all recommend

Feb 18, 2012 | 09:50 AM

glc

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From: Joplin MO

Don't do it, that will upset all the emissions calibrations.

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