12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

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Old Oct 23, 2008 | 03:45 PM
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wilke12V's Avatar
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im getting a 5" stack for my truck, i want it off center to the right so it will line up. is there anything special i need to do besides get a 90 and a straight pipe and cut a hole in the bed?

---AutoMerged DoublePost---

ive also seen the exhaust come out of the hood, how and what is that?
 

Last edited by wilke12V; Oct 23, 2008 at 03:45 PM. Reason: Automerged Doublepost
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Old Oct 23, 2008 | 04:32 PM
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you mean you want the stack to come right up where the exhaust runs normally, then yes you will need a a piece of straight pipe to come from your down pipe and i would recomend using flexpipe also if its a regular cab i would run the flex right off the down pipe then to the straight to the 90 and up to the stack. I'll go take a picture of mine to show you some ideas
 
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Old Oct 23, 2008 | 04:55 PM
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here is mine and how i got attached the bed
 
Attached Thumbnails stack-1023081735-1-.jpg   stack-1023081735a-1-.jpg  
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Old Oct 24, 2008 | 02:52 PM
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where can i get the flex pipe, and will it need to be 4 or 5"
 
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Old Oct 24, 2008 | 03:10 PM
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any exhaust shop should be able to get it for ya, you will only need 4" since the rest of your exhaust is 4".

The order should be-Down pipe then to either a little piece of straight then to flex or just straight to flex, then enough straight to get you where the 90 will go up and to your bed then either attach the stack to the 90 if it is long enough or you may need to put another short section of pipe on the 90 to then go to the stack
 
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Old Oct 25, 2008 | 12:10 AM
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well i got it. its short tho when set in the bed it only goes about 3/4 of the back window. so my last question is how do i get the whole thing to seal. or do i just slide the stgack over the top of the exhaust?
 
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Old Oct 25, 2008 | 12:48 AM
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you might need to add a little piece of pipe to get the stack up higher because your gonna have alot of cab noise when your driving but you may like that.


to seal it you'll need some exhaust clamps like this one

that should seal it up good
 
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Old Oct 25, 2008 | 08:47 PM
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thanks
 
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