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Old 11-01-2016, 12:47 AM   #15
Smallblock454
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Join Date: Jun 2014
Location: LB, Germany
Posts: 1,456
Cast Manifolds vs. Headers

Cast = stock
Manifold 2.5"
Manifold long tube 3"



The stock 986 manifold is around funny 2".

Regards, Markus
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