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Old 03-13-2007, 10:46 AM   #23
Ru fan
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Member#: 1605
Join Date: Jun 2000
Chapter/Region: NESIC
Location: Middletown, CT USA
Vehicle:
1997 1.8L Brighton
NESIC TrackH0z member#1

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I guess what I am asking is should we be gasket matching (grinding out as much material as the gaskets allow) on the exits of the various headers, cross-over, etc.? What is the advantage to this? I see this as increasing the internal volume and losing exhaust speed. All things to hurt spool.
My thoughts would be to remove just enought material to remove the restriction, but not so much as to increase the internal volume. What is the point of opening up huge ports if the pipe leading into it is not any bigger?

I am not trying to be a smart-a$$. I just want to know how people are thinking when they make these changes.

Seth E.
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