Ported Exhaust Manifolds - Anyone running them?

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Jul 13, 2006 | 06:58 AM

Rubadubdub

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Ported Exhaust Manifolds - Anyone running them?

As the title says. If so then what gains have you seen? I know, I know just get headers but that's not what I want.

Jul 13, 2006 | 07:13 AM

BanditTA

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We do them all the time on the supercharged W bodies, usually headers make about 5 more hp than PEM's (ported exhaust manifolds) but thats because we can't put long tubes on them either. Usually we can make 8-10hp with PEM's, on an fbody I really can't tell ya but it would probably be like putting shorties on.

Jul 13, 2006 | 09:33 AM

radz282003

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From: Tree-Hugging, Bug eating CALI'

I had for a bit, but couldn' t tell you I could feel much of a difference. Car didn' t run any better or worse. However, I probably didn' t spend as much time working on them though.