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catalytic and muffler bypass

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Old 01-12-2009, 11:54 PM
  #1  
clintster77
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Default catalytic and muffler bypass

Give me some feedback on this mod I would like to do.
I want to put on a GT takeoff rear bumper on .
But without duels I will have an extra cutout .
I had a brainstorm .
If I put a dump on before the catalytic converter and ran the dump all the way out the back where the extra cutout is .
Will this give me any advantage at the track ?
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Old 01-13-2009, 01:16 AM
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tx_zstang
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Interesting idea, but can't work with the stock cats; they are way too close to the exhaust manifold, unless you do some extensive piping. Bypassing the cat converter wont buy you much time, if any.
Instead, put a dual setup under there and leave the cats in place. They aren't that restrictive until you start getting into F/I setups. And doing a dual setup will gain you a few hp and be easier than what you are thinking.
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Old 01-13-2009, 01:52 AM
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clintster77
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hmmmmmm did not think about that. Maybe I could move the catalytic converter back an couple of inches. Just enough to fit the Y in.
Or I could only bypass the muffler by putting a Y right before the muffler run it over to the cutout and just cap it off like an old school dump. that would be cheaper than a duel setup but it would still have the catalytic converter restriction .
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Old 01-13-2009, 11:00 AM
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Black Mamba GTT
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Why don't you just put straight pipes in and be done with it. I don't see what you are trying to do besides break the law of emissions.

O I have straight pipes on the vette hehehe.
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Old 01-13-2009, 05:03 PM
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clintster77
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Originally Posted by Black Mamba GTT View Post
Why don't you just put straight pipes in and be done with it. I don't see what you are trying to do besides break the law of emissions.

O I have straight pipes on the vette hehehe.
your not serious. right?

Just in case your serious . cap on street / uncap at track
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Old 01-13-2009, 05:26 PM
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But the gains vs work and money would be mininal at best.
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Old 01-13-2009, 05:40 PM
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clintster77
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another one of those poor boy mods. hahahah
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