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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:
    4,601
    quietpeen
    Sep 8, 2012
  1. B Mitty

    Oil bypass filter

    B Mitty, Nov 19, 2020
    Replies:
    0
    Views:
    153
    B Mitty
    Nov 19, 2020
  2. Iflybyu

    2017 with bulky dog stalls when floored

    Iflybyu, Oct 27, 2020
    Replies:
    1
    Views:
    194
    Dennis Shellito
    Oct 27, 2020
  3. Johnny G Bagwell

    Fuel Additives

    Johnny G Bagwell, Aug 14, 2020 ... 3 4 5
    Replies:
    45
    Views:
    3,570
    BubbaJo
    Oct 23, 2020
  4. mikewelch

    MPG

    mikewelch, Sep 24, 2020
    Replies:
    6
    Views:
    575
    Dennis Shellito
    Oct 4, 2020
  5. Ryan Fransen

    Mileage compared to my 5.7 Hemi

    Ryan Fransen, Aug 15, 2020 ... 2
    Replies:
    10
    Views:
    1,252
    Poolman Marshall
    Sep 23, 2020
  6. 68PowerWagon

    Cummins HO

    68PowerWagon, Sep 17, 2020 ... 2
    Replies:
    17
    Views:
    951
    HDGoose
    Sep 17, 2020
  7. Rsuarez

    2017 3500 Heavy Duty poor fuel mileage

    Rsuarez, Sep 10, 2020
    Replies:
    8
    Views:
    565
    BubbaJo
    Sep 14, 2020
  8. BubbaJo

    Winter Prep

    BubbaJo, Aug 28, 2020 ... 2
    Replies:
    11
    Views:
    685
    WY-Dave
    Aug 30, 2020
  9. ramphil09

    Fuel economy changing

    ramphil09, Aug 24, 2020
    Replies:
    3
    Views:
    352
    ramphil09
    Aug 27, 2020
  10. Johnny G Bagwell

    Banks Monster EGR Emmisions Compliant Intake

    Johnny G Bagwell, Aug 1, 2020
    Replies:
    0
    Views:
    565
    Johnny G Bagwell
    Aug 1, 2020
  11. Peydaze

    2017 turbo replacement

    Peydaze, Jun 27, 2020
    Replies:
    3
    Views:
    553
    Dennis Shellito
    Jul 10, 2020
  12. jefflaur1

    Dwindling milage after first oil change??

    jefflaur1, Jun 18, 2020
    Replies:
    4
    Views:
    632
    Rob2018CTD
    Jul 7, 2020
  13. Rajman

    Regeneration on straight pipe exhaust

    Rajman, May 5, 2020
    Replies:
    2
    Views:
    601
    chri5k
    May 5, 2020
  14. Blkhammer

    Differential cover question

    Blkhammer, Nov 15, 2018 ... 2 3
    Replies:
    26
    Views:
    4,135
    dexter
    Apr 24, 2020
  15. OLEJOE

    Oil Temperature ?

    OLEJOE, Dec 26, 2019
    Replies:
    8
    Views:
    1,119
    OLEJOE
    Apr 22, 2020
  16. GSPKurt

    Hood Vents In CTD Hood

    GSPKurt, Dec 13, 2019
    Replies:
    4
    Views:
    1,160
    Gr8bawana
    Apr 10, 2020
  17. swp1983

    any reviews on mm3 tuner for 6.7l CTD

    swp1983, Feb 19, 2017
    Replies:
    6
    Views:
    5,961
    Senodil
    Apr 6, 2020
  18. 68PowerWagon

    3.73 Gears for Diesel?

    68PowerWagon, Feb 24, 2020
    Replies:
    0
    Views:
    798
    68PowerWagon
    Feb 24, 2020
  19. JMod45

    Help me understand Tuners

    JMod45, Nov 20, 2019 ... 2
    Replies:
    11
    Views:
    3,007
    DepotBo
    Feb 12, 2020
  20. carl newton

    question about transmission(s)

    carl newton, Jan 22, 2020
    Replies:
    1
    Views:
    802
    Dennis Shellito
    Jan 24, 2020
  21. olie

    Poor Fuel milage

    olie, Jan 18, 2015 ... 2
    Replies:
    16
    Views:
    21,295
    leeroy300
    Dec 20, 2019
  22. melman

    engine light problem

    melman, Dec 16, 2019
    Replies:
    2
    Views:
    602
    Fuel35 67
    Dec 18, 2019
  23. melman

    dpf

    melman, Dec 3, 2019
    Replies:
    2
    Views:
    1,181
    Silver The Mega
    Dec 13, 2019
  24. Truck4

    Trans. cooler

    Truck4, Nov 14, 2019
    Replies:
    7
    Views:
    1,079
    Dennis Shellito
    Nov 18, 2019
  25. Stoneagemason

    Tuned Down 6.7 Cummins 2018 can and chassis model

    Stoneagemason, Nov 14, 2019
    Replies:
    3
    Views:
    1,123
    Dennis Shellito
    Nov 14, 2019
Showing threads 1 to 25 of 191

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