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Get full access to tune your 2022–2024 6.7L Cummins Factory CM2450b ECM- Click Here

2004.5-2005 Duramax LLY Devices

6.6L Duramax LLY Tuning Devices

Tuning devices for the 2004.5–2005 GM 6.6L Duramax LLY. The device flashes a Dieselr-calibrated tune to your truck. Every part is matched to your truck and the rest of your build.

8 products

  • HP Tuners MPVI4 - Blank Tuning Devices HP Tuners
    MPVi4 Tuning Devices
    HP Tuners

    HP Tuners MPVI4 Interface - Blank

    $399.99 USD
    NEW
  • HP Tuners MPVI4 - Blank Tuning Devices HP Tuners
    MPVi4 Tuning Devices
    HP Tuners

    HP Tuners - MPVi4 -Preloaded (4 Credits)

    $599.95 USD
    NEW
  • HP Tuners RTD 4 - Blank Tuning Devices HP Tuners
    RTD4 Tuning Devices
    HP Tuners

    HP Tuners RTD 4 - Blank

    $399.99 USD
  • EFI Live Autocal V3 w/GDP Support Package (Cummins 07-09/Duramax 01-10) GDP Tune Files GDP
    EFI Live GDP Tune Files
    GDP

    EFI Live AutoCal Device with GDP Tune Files

    GM Duramax Models (2001-2010) More info
    Fits:
    2007.5-2010 6.6L LMM GM Duramax
    2006-2007 6.6L LBZ GM Duramax
    2004.5-2005 6.6L LLY GM Duramax
    2001-2004 6.6L LB7 GM Duramax
    Dodge/Ram Cummins Models (2007-2009) More info
    Fits:
    2007-2009 6.7L Dodge/Ram Cummins
    $729.99 USD
  • Edge Display Mount Display Mount Edge Products A-Pillar Display Mount (2010-2018 Ram)
    Display Mount
    Edge Products

    Edge Display Mount

    () More info
    Fits:
    2001-2025 6.7L Dodge/Ram Cummins
    6.7L Ford Powerstroke
    6.6L LB7 GM Duramax
    6.6L LLY GM Duramax
    6.6L LBZ GM Duramax
    6.6L LML GM Duramax
    6.6L L5P GM Duramax
    From $51.19 USD
    $0.00 USD From $51.19 USD
  • Edge Insight CTS3 Digital Gauge Monitoring System Tuning Devices Edge Products
    Calibration Monitor
    Sale
    Edge Products

    Insight CTS3

    Universal Fitment
    $511.95 USD
    $600.00 USD $511.95 USD
  • EFI Live AutoCal Unlink EFI Live
    EFI Live

    EFI Live AutoCal Unlink

    $50.00 USD
  • Edge EAS Pyrometer Probe with Starter Kit Edge Products
    Edge Products

    Edge EAS

    Universal Fitment
    From $77.65 USD
    $0.00 USD From $77.65 USD
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Now only 4 HP Tuners Credits are needed to Tune the E41 ECM of GM Duramax L5P (17-23) - Click Here

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