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Old Sep 28, 2007 | 08:38 PM
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what is it?

took this off and early 99 exhaust system
 
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Old Sep 28, 2007 | 08:49 PM
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Its a muffler i think, not stock though
 
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Old Sep 28, 2007 | 08:50 PM
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no its got a muffler i didnt show that!
 
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Old Sep 28, 2007 | 08:53 PM
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here it is
 
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Old Sep 28, 2007 | 08:59 PM
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The only other thing it could be is a CAT right?
I was looking at this sweet new box truck that brought some materials to my job today, big ol cummins. It had a crazy exhaust, it was only like 4 feet long once it was under the truck. It had that (what uve got) looking thing then like 10 inches of pipe then the mount flange to the muffler was crazy, pre muffler it had big sections of pipe removed right before the muffler, it didnt make much sense but this thing was so new it was just starting to get that blue tint to it, maybe to keep the temps down not sure.

If its not a CAT then it may be some type of collector to keep the smoke down. Is it a California truck?
 
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Old Sep 28, 2007 | 09:03 PM
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cal truck man i dont know! but 2 of the same exhaust in missouri?
 
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Old Sep 28, 2007 | 09:16 PM
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It's a Cat. Haven't seen any early '99 trucks, but the one on a '97 looks like that. My '01 didn't come with one.
 
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Old Sep 28, 2007 | 09:24 PM
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Originally Posted by mueckster
It's a Cat. Haven't seen any early '99 trucks, but the one on a '97 looks like that. My '01 didn't come with one.
yep only 99 that i know of !but no o2 sensor!
 
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Old Sep 28, 2007 | 09:27 PM
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Shine a flashlight into it from inlet, if it looks like a gray honeycomb its a cat.
 
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Old Sep 28, 2007 | 09:29 PM
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I vote early version partculate filter
 
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Old Sep 28, 2007 | 09:30 PM
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might not be gray anymore but im headed outside too see!
 
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Old Sep 28, 2007 | 09:35 PM
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Originally Posted by medhvac
yep only 99 that i know of !but no o2 sensor!
Diesels don't use an O2 sensor.
 
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Old Sep 28, 2007 | 09:35 PM
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well took a flashlight and looked into it!looks like a screen for a window!
 
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Old Sep 28, 2007 | 09:39 PM
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Originally Posted by medhvac
well took a flashlight and looked into it!looks like a screen for a window!
That could be a better description, the tiny holes you could see were long holes? or it actually looks just like a screen? When i said honeycomb, i should have said very fine honeycomb, with very small holes (pencil tip sized usually) The core of them is made partially of platinum, and is worth some money to scrap metal places.
 
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Old Sep 28, 2007 | 09:42 PM
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Heres a picture i quick found of the inside of a cat. very fine holes


 
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