Thread: metal vs plastic intake manifold
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Old 03-13-2008, 11:47 PM
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Default Re: metal vs plastic intake manifold
Probably mostly a cost issue. I am no expert but I would guess plastic manifolds are easier and cheaper to mold than aluminum. Also plastic would tend to do a better job keeping the intake charge cooler (i.e. insulated from underhood heat) and offer a weight savings as well.
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