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Exhaust question

   
Old Jun 2, 2021 | 06:45 AM
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It has a cat off each manifold with an 02 sensor on either side. Then they Y in to another cat with no sensors.
You have 3 cats? Or two cats and a muffler?
 
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Old Jun 2, 2021 | 07:02 AM
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Originally Posted by Moparite
You have 3 cats? Or two cats and a muffler?
California emissions? Or maybe the HD 5.9.
 
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Old Jun 2, 2021 | 03:33 PM
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Originally Posted by HeyYou
California emissions? Or maybe the HD 5.9.
What was even the point of the HD 5.9
 
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Old Jun 2, 2021 | 08:36 PM
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Originally Posted by MoparFanatic21
What was even the point of the HD 5.9
More Emissions equipment. They had a surplus for a couple years.
 
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Old Jun 2, 2021 | 08:43 PM
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Originally Posted by HeyYou
More Emissions equipment. They had a surplus for a couple years.
I just never got why they called it HD. It would be different if it has a forged steel crank and maybe more horsepower or torque. Another dumb thing Chrysler did
 
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Old Jun 2, 2021 | 08:48 PM
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There was likely some lawyerish reason for it.
 
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Old Jun 2, 2021 | 08:55 PM
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Originally Posted by HeyYou
There was likely some lawyerish reason for it.
Probably lol I just never found a reason to the 5.9 HD some 2500/3500s had it others didn't
 
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Old Jun 3, 2021 | 06:30 AM
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I just never got why they called it HD. It would be different if it has a forged steel crank and maybe more horsepower or torque.
The exhaust was different along with the fan clutch but i think that was about it.
 
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