ported exhaust manifolds
ported exhaust manifolds
I know this isn't as good as headers, but when paired with a highflow y-pipe, will it help much?
http://www.geocities.com/jgkov/PortExhMan.html
http://www.geocities.com/jgkov/PortExhMan.html
Supreme Member

Joined: Jan 2001
Posts: 7,164
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From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
I hear L98 manifolds flow the best compared to other 3rdgen manifolds + the porting, are you planning on buying them? If so I would just save your money for some cheap headers.
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