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Engine and Performance

Ask any questions about performance here. Talk about your performance mods, specs and numbers.

Sponsored By: Moe's Performance
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  1. ramhunter9

    Cummins Performance Section

    ramhunter9, Sep 7, 2012
    Replies:
    2
    Views:
    4,544
    quietpeen
    Sep 8, 2012
  1. mikewelch

    MPG

    mikewelch, Sep 24, 2020 at 6:28 PM
    Replies:
    5
    Views:
    104
    mikewelch
    Sep 24, 2020 at 8:41 PM
  2. Ryan Fransen

    Mileage compared to my 5.7 Hemi

    Ryan Fransen, Aug 15, 2020 ... 2
    Replies:
    10
    Views:
    695
    Poolman Marshall
    Sep 23, 2020 at 10:45 AM
  3. 68PowerWagon

    Cummins HO

    68PowerWagon, Sep 17, 2020 ... 2
    Replies:
    17
    Views:
    424
    HDGoose
    Sep 17, 2020
  4. Rsuarez

    2017 3500 Heavy Duty poor fuel mileage

    Rsuarez, Sep 10, 2020
    Replies:
    8
    Views:
    355
    BubbaJo
    Sep 14, 2020
  5. Johnny G Bagwell

    Fuel Additives

    Johnny G Bagwell, Aug 14, 2020 ... 2 3 4
    Replies:
    31
    Views:
    1,444
    John Jensen
    Sep 8, 2020
  6. BubbaJo

    Winter Prep

    BubbaJo, Aug 28, 2020 ... 2
    Replies:
    11
    Views:
    459
    WY-Dave
    Aug 30, 2020
  7. ramphil09

    Fuel economy changing

    ramphil09, Aug 24, 2020
    Replies:
    3
    Views:
    302
    ramphil09
    Aug 27, 2020
  8. Johnny G Bagwell

    Banks Monster EGR Emmisions Compliant Intake

    Johnny G Bagwell, Aug 1, 2020
    Replies:
    0
    Views:
    515
    Johnny G Bagwell
    Aug 1, 2020
  9. Peydaze

    2017 turbo replacement

    Peydaze, Jun 27, 2020
    Replies:
    3
    Views:
    491
    Dennis Shellito
    Jul 10, 2020
  10. jefflaur1

    Dwindling milage after first oil change??

    jefflaur1, Jun 18, 2020
    Replies:
    4
    Views:
    520
    Rob2018CTD
    Jul 7, 2020
  11. Rajman

    Regeneration on straight pipe exhaust

    Rajman, May 5, 2020
    Replies:
    2
    Views:
    513
    chri5k
    May 5, 2020
  12. Blkhammer

    Differential cover question

    Blkhammer, Nov 15, 2018 ... 2 3
    Replies:
    26
    Views:
    4,026
    dexter
    Apr 24, 2020
  13. OLEJOE

    Oil Temperature ?

    OLEJOE, Dec 26, 2019
    Replies:
    8
    Views:
    1,062
    OLEJOE
    Apr 22, 2020
  14. GSPKurt

    Hood Vents In CTD Hood

    GSPKurt, Dec 13, 2019
    Replies:
    4
    Views:
    1,098
    Gr8bawana
    Apr 10, 2020
  15. swp1983

    any reviews on mm3 tuner for 6.7l CTD

    swp1983, Feb 19, 2017
    Replies:
    6
    Views:
    5,506
    Senodil
    Apr 6, 2020
  16. 68PowerWagon

    3.73 Gears for Diesel?

    68PowerWagon, Feb 24, 2020
    Replies:
    0
    Views:
    664
    68PowerWagon
    Feb 24, 2020
  17. JMod45

    Help me understand Tuners

    JMod45, Nov 20, 2019 ... 2
    Replies:
    11
    Views:
    2,771
    DepotBo
    Feb 12, 2020
  18. carl newton

    question about transmission(s)

    carl newton, Jan 22, 2020
    Replies:
    1
    Views:
    736
    Dennis Shellito
    Jan 24, 2020
  19. olie

    Poor Fuel milage

    olie, Jan 18, 2015 ... 2
    Replies:
    16
    Views:
    20,436
    leeroy300
    Dec 20, 2019
  20. melman

    engine light problem

    melman, Dec 16, 2019
    Replies:
    2
    Views:
    552
    Fuel35 67
    Dec 18, 2019
  21. melman

    dpf

    melman, Dec 3, 2019
    Replies:
    2
    Views:
    1,053
    Silver The Mega
    Dec 13, 2019
  22. Truck4

    Trans. cooler

    Truck4, Nov 14, 2019
    Replies:
    7
    Views:
    982
    Dennis Shellito
    Nov 18, 2019
  23. Stoneagemason

    Tuned Down 6.7 Cummins 2018 can and chassis model

    Stoneagemason, Nov 14, 2019
    Replies:
    3
    Views:
    1,017
    Dennis Shellito
    Nov 14, 2019
  24. melman

    carbon cleaner

    melman, Aug 26, 2019
    Replies:
    7
    Views:
    2,127
    SyN
    Nov 9, 2019
  25. melman

    Engine light

    melman, Nov 4, 2019
    Replies:
    2
    Views:
    675
    melman
    Nov 5, 2019
Showing threads 1 to 25 of 189

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