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  #1  
Old 02-08-2011, 12:52 PM
bobby bobby is offline
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Default Not sure what goes here

I just bought my first Diesel, a 2007 Dodge 2500 4x4 Big Horn with a 6.7 and it only has 845miles on it. First I'm about as new as you can get. Not sure hom these chatrooms or forums work. I've modified many gas vehicles but never a diesel. Any mods I do is first for reliablity then for perfomance, which is why I came here. After some research the only problem with the 6.7 seems to be the DPF and EGR systems. My buddy has the 5.9 and gets 20mpg and I only getting 14.5 mpg. Buy by-passing the DPF and the EGR system with an H&S Maxx programmer this is said to fix these problems. The power gains aren't the reasons for doing these mods but are diffinetly welcomed. What I would like to know is, are these mods heathy and good for my engine? Longevity and reliablity is more important. Any help in this would be greatly appreciated.
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  #2  
Old 02-08-2011, 01:03 PM
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yamifz1 yamifz1 is offline
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Hello and welcome to the forum. I wish I could help you but I can't, there are a lot of helpful people here and someone will be able to help you. When you get a chance post a few pictures of your truck.
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  #3  
Old 02-08-2011, 01:08 PM
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These mods will void your 10/100 powertrain warranty so keep that in mind. Diesel parts aren't cheap.
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  #4  
Old 02-08-2011, 01:14 PM
bobby bobby is offline
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Join Date: Oct 2009
Age: 50
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Vehicle: 2007 Dodge Ram
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Engine: 2007-???? 409ci (6.7L) Cummins Turbo Diesel 350hp 650lb/ft
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Default ? on the 6.7 mods

I just bought my first Diesel, a 2007 Dodge 2500 4x4 Big Horn with a 6.7 and it only has 845 miles on it. First I'm about as new as you can get. Not sure how these cgatrooms or forums work. I've modified many gas vehicles but never a diesel. Any mods I do is first for reliablity then for performance, which is why I came here. After some research the only problem with the 6.7 seems to be the DPF and EGR systems, My buddy has a 5.9 and get 20mpg and I only get 14.5 mpg. Buy by-passing the DPF and EGR and using a H&S Maxx programmer this is said to fix these issues. The power gains aren't the reasons for doing this although they well be welcomed. What I would like to know is, are these mods heathly and good for my engine? Longevity and reliablity is more important. Any help in this would be greatly appreciated. Thanks
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  #5  
Old 02-08-2011, 01:28 PM
Stangshcky12 Stangshcky12 is offline
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My girlfriends dad did a dpf delete and has an H&S minimaxx tuner. I highly recomend it as the first thing to do to the 6.7
Even with the stock tune just to fool the computer into thinking its in passive regeneration constantly, the power difference was very noticeable, fuel mileage is comparable to the 5.9s, in the long run you'll save yourself plenty of headaches of going back to the dealership after the truck throws itself into limp mode.
The H&S tuners also have software to do some other pretty cool stuff to the truck. I'm a big fan of keeping the foglights on with the highbeams.
Is your truck automatic? The stock clutches with the 6.7s seem to slip with any tune over 30hp stock.

Also look into your local emision laws and keep in mind you'll have to return the truck to stock for warranty work.
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  #6  
Old 02-08-2011, 01:32 PM
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Quote:
Originally Posted by Stangshcky12 View Post
Also look into your local emision laws and keep in mind you'll have to return the truck to stock for warranty work.
Deleting the DPF will void the engine and emissions warranty.
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  #7  
Old 02-08-2011, 02:31 PM
sledpuller2006 sledpuller2006 is offline
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deleting the DPF does void warranty in some dealerships but i highly recomend doing it.. the soot that goes back into that motor is the worst ive ever seen. TREE HUGGERS. it WILL longjevitise that motor and will increase ur mileage!!!!! We have done numerous DPF deletes with no issues what so ever..Milage is very important do it
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  #8  
Old 02-08-2011, 03:16 PM
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sk8noregon sk8noregon is offline
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Hello and welcome to the ForumZ !
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  #9  
Old 02-08-2011, 08:11 PM
Stangshcky12 Stangshcky12 is offline
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Opening up the EGR plates was one of the grossest things I've seen. It was like engine sludge in the intake.
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  #10  
Old 02-08-2011, 10:50 PM
sledpuller2006 sledpuller2006 is offline
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Quote:
Originally Posted by Stangshcky12 View Post
Opening up the EGR plates was one of the grossest things I've seen. It was like engine sludge in the intake.
AGREED!!!!!!!!!!!!!!!
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