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Registered User
Join Date: May 2016
Posts: 6
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m96 head
on my m96 head, what is the channel behind the exhaust ports? It's on the machined surface that the manifold bolts to.
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05-14-2016, 09:33 AM
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Registered
Join Date: Feb 2011
Posts: 568
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That's where the air pump inputs air into the exhaust stream on cold starts.
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05-15-2016, 07:53 AM
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