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What is the OD in a Y setup

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Old Jan 16, 2006 | 12:49 PM
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Default What is the OD in a Y setup

I'm used to oval track cars, where some companies claim that a Y setup to a single exhaust increases breath of the powerband and power. Sort of an 8-2-1 setup.





The issue on power seems to be design of the merge. Burns describes an X-pipe as two Y-Pipes joined:





To work correctly they must be a 2-to-1 merge collector.

Question: Does someone build these for F-bodies? Y-bodes? Monaro/GTO?

And do they work?

Thanks,

David
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Old Jan 16, 2006 | 01:18 PM
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Flowmaster does......i have one on my car, 4" in and 3" out. I think it works great, cuts down on the rasp from my LTs and RandomTech cats because they are virtually like having an ORY and it flows great!
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Old Jan 16, 2006 | 05:43 PM
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the flowmaster merge is dual 3" in and 4" out most people step it down to a 3" then for there catbacks unless they run a 4" catback. All the Good Y pipes use this merge
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