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Catalytic Converters?

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Old Mar 26, 2009 | 02:33 PM
  #1  
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Default Catalytic Converters?

Is there anyone making Catalytic replacements for your factory CATS that only look like the real thing?

Maybe with a straight pipe going thru them

I hope I don't get flamed to bad for this..........
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Old Mar 26, 2009 | 02:45 PM
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Hard not to flame for that, However, The factory cats are very efficient, meaning they flow very well with a very minimal amount of restriction, In all but the most highly modified engines you would be hard pressed to tell the differeance between the catted and none catted performance if the elimination of the cats was the only differeance.
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Old Mar 26, 2009 | 02:47 PM
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I'll only pretend that I think I know where you are going with this. Maybe this post from shopdog will shed some light, if not, sorry, I'm just trying to help:

http://forums.corvetteforum.com/1556759089-post2.html
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Old Mar 26, 2009 | 02:57 PM
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or you could get a set of used ones ($50) and put a 1 inch metal bit up there until there's nothing left.
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Old Mar 26, 2009 | 03:03 PM
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Thanks,
I wasn't aware that the factory cats were anything but very restrictive.

For someone like myself who is only planning on Stinger II"s & X-Pipe, I probably shouldn't even be worrying about messing with them.
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Old Mar 26, 2009 | 03:05 PM
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Originally Posted by John Mclain
Is there anyone making Catalytic replacements for your factory CATS that only look like the real thing?

Maybe with a straight pipe going thru them

I hope I don't get flamed to bad for this..........
No reputable muffler shop or repair shop will remove cats or replace non oem cats. They could lose their license and face some severe fines. Plus, the ecm is programmed to the stock cats. If you replace them or otherwise change them, you will probably start showing an CIL.

Also, if you live in a state that has emissions testing, (here in FL we do not), you will fail.

I would just leave them. They are as efficient as they can be and still meet federal and state requirements.
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Old Mar 26, 2009 | 03:10 PM
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Look up the federal fines for this before deciding to do anything........if you every take it in for service, the garage is likely going to decline to even work on your car if there are no cats...........too much liability for them.
The others above are right......unless your car is a pure race car, there is no way your ECM and the rest of your car is going to run right without the cats........really bad idea..........
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Old Mar 26, 2009 | 03:20 PM
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Originally Posted by John Mclain
Thanks,
I wasn't aware that the factory cats were anything but very restrictive.
Exactly, these aren't like cats from 30 or even 20 years ago. Things have changed, the current cats used on high perf cars are very free flowing.
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