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6.7L Performance Discussion of 6.7 Liter Dodge Cummins Diesels Related To Performance And Longevity

4 inch or 5 inch

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Old May 22, 2011 | 12:46 PM
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DslDeamon's Avatar
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Default 4 inch or 5 inch
looking into doing a dpf delete and egr as for the exhast with no muffler with a full 4 door 8 foot box 2011 whats the best sounding ?
 
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Old May 22, 2011 | 01:43 PM
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Default Re: 4 inch or 5 inch
5" straight pipe

Luke
 
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Old May 22, 2011 | 02:19 PM
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Definitely 5 inch
 
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Old May 22, 2011 | 05:04 PM
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5''
 
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Old May 22, 2011 | 08:06 PM
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ok thank you guys now is their any difference between the egr and egr cooler delete for power and fuel mpgs?
 
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Old May 22, 2011 | 08:22 PM
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Get the full EGR/Cooler Delete
 
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Old May 24, 2011 | 11:13 AM
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I heard that on the 07.5 that to put a 5" tbe you need to cut the fire wall or go to a 4". True??False?? different mfg of exhaust?? Just curious
 
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Old May 24, 2011 | 01:53 PM
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on my 08 6.7 i had was a 5 inch and i had no problems so id say false
 
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Old May 24, 2011 | 05:12 PM
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Never heard or seen an issue
 
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Old May 24, 2011 | 07:52 PM
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someone is bsing u
 
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