DPF back exhaust - Diesel Bombers



6.7 Liter Dodge Cummins 07.5-12 Discussion of 6.7 Liter Dodge Cummins Diesels

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Old 02-05-2013, 08:30 AM
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Default DPF back exhaust

Just a couple exhaust questions. #1 - On a stock 08' Dodge 6.7, cat & DPF in-place, will a DPF back exhaust system do any good? #2 - I heard there are DPF back sysems designed to help with EGT's, is this true and if so who are they? Thanks in advance.
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Old 02-05-2013, 08:50 AM
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it wont help.
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Old 02-05-2013, 09:45 AM
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If it does it will be very little


Luke
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Old 02-05-2013, 12:36 PM
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They don't help. The factory muffler isn't very restrictive at all.
I put one on when my tailpipe rotted away from the muffler
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Old 02-05-2013, 01:09 PM
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Yep they very rarely change anything.
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Old 02-05-2013, 04:17 PM
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I appreciate the info. What about the EGT's, I read something, somewhere, about louvers or some sort of spacing placed at some point in the system that are supposed to reduce EGT's, I think to allow freash air to be pulled in. Anyone read anything about this?
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Old 02-05-2013, 10:49 PM
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nope b.s there is nothing inside no louvers but you can dang near by a full system for the price of a cat back just sayin
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Old 02-14-2013, 10:19 PM
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get a dpf delete and and a 5 inch turbo back man
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