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DPF back exhaust on a 6.4 hemi?

Discussion in 'Heavy Duty' started by Millnoff, Jun 20, 2020.

  1. Millnoff

    Millnoff Junior Member

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    Looking to replace the ugly resonator and tailpipe on my 14' 6.4 gasser. Looks like a dpf back system for a cummins would be a real close fit. Have any of you tried it? Or what needs to be modified?

    Thanks in advance!
    Jesse
     
  2. McBroom

    McBroom U.S.Marine Veteran Retired 88-2000 Military

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    I dont think it'll fit. I recommend a Solo Delete kit from Solo Performance Exhaust.
    Nick @gotexhaust is who I bought mine from. Its a badass setup. It replaces the stock bus muffler. Sounds awesome!
    Then you can cut the resonator off and stub out the new tail section the way you want it to look.
    Nick is a preferred vendor here and a super cool guy that goes way above and beyond customer service.

    Blue Mule
     
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  3. Millnoff

    Millnoff Junior Member

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    Thanks, but not looking to get rid of the stock muffler. I want quiet still, but better looking at the exit. I'll just have a local shop weld something up if the dpf back wont work.
     
  4. MADDOG

    MADDOG Cummins Driver Administrator Supporting Member Military

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    I would agree with McBroom. I've owned both a 6.4L HEMI & a 6.7L CTD.

    I looked at a diesel system and noticed that it wasn't going to fit without some new hangers and pipe mods at the back of the DPF SCR can.

    What I did with my 6.4L to remove that ugly reso & tailpipe was to keep the stock pipe at the muffler, have a Magnaflow muffler installed, removed the reso & tailpipe, had a new full length tailpipe fabbed and the tailpipe was painted matte black to hide it.

    Without a reso it droned a little bit. I had already planned to get a custom tune from Hemifever so I had him turn off MDS and the drone pretty much went away.

    Here's a vid of how it sounded:

     
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  5. crash68

    crash68 Senior Member

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    A DPF back exhaust would eliminate the muffler. Banks Power makes one for the CTD version available that's 4". They also makes one for the EcoDiesel which is 3.5" which is should be your tailpipe size, either one should be adaptable.
    . You'll most likely have to cut whatever exhaust kit you buy down as they're intended to eliminate the muffler.
     
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  6. Millnoff

    Millnoff Junior Member

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    I really only need the section from just before the axle to the end of the pipe. That's why I figured a dpf kit, cut and fab the joint to fit the stock exhaust and should be good to go? But didnt know if anyone had done it or not? Guess I'll see what I can come up with?
     
  7. crash68

    crash68 Senior Member

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    you'll definitely have to do some cutting down. Take a look at the Banks exhaust install manuals, the CTD and EcoD are attached.
     

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  8. Iron Outlaw

    Iron Outlaw Senior Member

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    Id get a muffler shop to cut it out or just buy a full catback. You can get a borla for around $600 on sale but it definitely isn't quiet. Not as bad as the cheaper muffler delete but it screams pretty good at high rpms.
     
  9. 1500ram12

    1500ram12 Senior Member

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    On my 2015 and my current 2018 6.4L I just cut the reso off and left a "axle dump" look. I think it looks cleaner. On my 15 I went with mufflex direct fit which is a 7" round magnaflow muffler with pre bent pipes. On my 18 I went with a borla xr-1 40086 Muffler and used 2 42 degree pipes to make the bend to the over axle part.

    I have heard of people using a dpf back system to delete the reso but don't believe they said what was done to make it fit


    2018 2500 6.4L Hemi Tradesman
     
  10. ichime

    ichime Member

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    If it's a DIY project, the junkyard would be your best friend. The 2010-12 diesel exhaust tips are easier to remove than the 2013+ thanks to the EPA
     

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