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1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

Insulation?

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Old Dec 8, 2009 | 10:07 PM
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DieselPerformanceGuy's Avatar
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Default Insulation?
Hey all


I'm puttin on a new air intake horn and the insulation on the hoods in the way. I was wondering if any of u guys have taken it off and if it makes the engine louder or not.

thanks for the input.
 
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Old Dec 8, 2009 | 11:52 PM
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on or off made no difference here
 
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Old Dec 9, 2009 | 02:49 AM
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Just makes the engine noise a little quieter....theres no real need for it.
 
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Old Dec 9, 2009 | 06:11 AM
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Mines gone and no problems at all As far as louder I don't know if you will really notice it
 
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Old Dec 9, 2009 | 06:38 AM
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I replaced mine with Dynamat. It comforms to the hood shape and keeps the sound at the original level

Bob
 
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Old Dec 9, 2009 | 07:10 AM
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mines gone hasnt hurt a thing as far as the noise level
 
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Old Dec 9, 2009 | 01:46 PM
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Alright thanks guys thats qhat i was wondering.
 
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