Turbo motor; NA port blocked off. Size?

FullNelson

New Member
Sep 17, 2007
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Coastal Georgia
Theres a port on the exhaust side of the car (just above an behind the turbo oil drain) that IIRC i used on NA motors. Possibly a pressure guage location? Do you guys know the thread size of the hole? It didnt feel like a nornal 12mm or 14mm bolt.