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2001-2004 Duramax LB7

6.6L Duramax LB7 — Tuning, Exhaust & Fuel

Calibrated tuning, exhaust, and fuel hardware for the 2001–2004 GM 6.6L Duramax LB7. The LB7 is pre-emissions and known for injector wear; builds address fueling, injectors, and the Allison alongside tuning. Every part here is matched to your truck and ordered the way you'd build it.

147 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
  • DIESELR EFI Live Tune Files (2001-2004 Duramax LB7 6.6L) Tune Files DIESELR Tuning
    EFI Live Tune Files
    DIESELR Tuning

    DIESELR EFI Live Tune Files

    (2001-2004)
    6.6L LB7 GM Duramax
    From $250.00 USD
  • DIESELR EFI Live Transmission Tune Files (2001-2016 Duramax 6.6L) TCM Tune File DIESELR Tuning
    EFI Live TCM Tune File
    DIESELR Tuning

    DIESELR EFI Live Transmission Tune Files

    GM Duramax Models (2001-2016) More info
    Fits:
    2011-2016 6.6L LML GM Duramax
    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
    $200.00 USD
  • GDP MPVI3 Customer Re-build Fee (Ram/GM/Ford/Jeep) *L5P NOT INCLUDED* Tune Files GDP
    MPVi4 Tune Files
    GDP

    GDP MPVi4 Customer Re-build Fee (Ram/GM/Ford/Jeep) *L5P NOT INCLUDED*

    $225.00 USD
  • EFI Live GM Rebuild (2001-2016 6.6L Duramax) Tune Files GDP
    EFI Live Tune Files
    GDP

    GDP EFI Live GM Rebuild Tune Files

    GM Duramax Models (2001-2016) More info
    Fits:
    2011-2016 6.6L LML GM Duramax
    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
    $225.00 USD
  • EFI Live GM Upgrade (2001-2016 6.6L Duramax) Tune Files GDP
    EFI Live Tune Files
    GDP

    GDP EFI Live Tune Files

    GM Duramax Models (2001-2016) More info
    Fits:
    2011-2016 6.6L LML GM Duramax
    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
    $125.00 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
  • EFI Live GDP SOTF or Multi-tune Support Package (Chevy/GMC 01-10 Duramax) GDP Tune Files GDP
    EFI Live GDP Tune Files
    GDP

    GDP EFI Live SOTF 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
    $275.00 USD
  • EFI Live GDP Single Support Package (2001-2010 6.6L Duramax) GDP Tune Files GDP
    EFI Live GDP Tune Files
    GDP

    GDP EFI Live Single 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
    $250.00 USD
  • CCT EFI Live Upgrade (2001-2016 6.6L Duramax) Tune Files Chaos Custom Tuning
    EFI Live Tune Files
    Chaos Custom Tuning

    Chaos Custom EFI Live Tune Files

    GM Duramax Models (2001-2016) More info
    Fits:
    2011-2016 6.6L LML GM Duramax
    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
    $125.00 USD
  • Chaos Custom Tuning EFI Live Tune Files (2001-2010 Duramax LB7/LLY/LBZ/LMM 6.6L) Tune Files Chaos Custom Tuning
    EFI Live Tune Files
    Chaos Custom Tuning

    Chaos Custom EFI Live 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
    From $250.00 USD
    $0.00 USD From $250.00 USD
  • CCT EFI Live A40-A50 Transmission Tune Files (2001-2016 6.6L Duramax) TCM Tune File Chaos Custom Tuning
    EFI Live TCM Tune File
    Chaos Custom Tuning

    EFI Live A40-A50 Transmission Tune Files

    GM Duramax Models (2001-2016) More info
    Fits:
    2011-2016 6.6L LML GM Duramax
    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
    $200.00 USD
    $0.00 USD $200.00 USD
  • DIESELR Downpipe Back Exhaust - Single (2001-2007 GM 2500/3500 6.6L Duramax LB7/LLY/LBZ) Exhaust DIESELR Tuning
    Stainless Steel Exhaust
    Dieselr Parts

    4-inch or 5-inch Downpipe Back Exhaust - Single

    GM Duramax Models (2001-2007) More info
    Fits:
    2001-2004 6.6L LB7 GM Duramax
    2004.5-2005 6.6L LLY GM Duramax
    2006-2007 6.6L LBZ GM Duramax
    From $579.99 USD
    STAINLESS
  • Dieselr Aluminized 4" Cat Back Exhaust Single | GM 2500/3500 6.6L DURAMAX LB7/LLY/LBZ w/OEM 4 Bolt Flange 2001-2007 Aluminized Exhaust Dieselr Parts
    Aluminized Exhaust
    Sale
    Dieselr Parts

    Dieselr Aluminized 4" Cat Back Exhaust Single

    GM Duramax Models (2001-2007) More info
    Fits:
    6.6L LB7 GM Duramax
    6.6L LLY GM Duramax
    6.6L LBZ GM Duramax
    $589.99 USD
    $640.00 USD $589.99 USD
    ALUMINIZED
  • Dieselr Aluminized Downpipe Back Exhaust Single | 2500/3500 6.6L GM DURAMAX LB7 (2001-2004.5) Aluminized Exhaust Dieselr Parts 5-inch Exhaust with Muffler
    Aluminized Exhaust
    Sale
    Dieselr Parts

    Dieselr Aluminized Downpipe Back Exhaust Single

    (2001-2004.5)
    6.6L LB7 GM Duramax
    From $549.99 USD
    $600.00 USD From $549.99 USD
    ALUMINIZED
  • Dieselr Aluminized 4" CAT Back Exhaust Single | 2500/3500 6.6L GM DURAMAX LB7 (2001-2004.5) Aluminized Exhaust Dieselr Parts
    Aluminized Exhaust
    Sale
    Dieselr Parts

    Dieselr Aluminized 4" Cat Back Exhaust Single

    (2001-2004.5)
    6.6L LB7 GM Duramax
    $549.99 USD
    $600.00 USD $549.99 USD
    ALUMINIZED
  • EFI Live VIN License GDP Licenses GDP
    GDP Licenses
    GDP

    EFI Live VIN License

    $125.00 USD
  • EFI Live License FlashScan V2/V3 GDP Licenses GDP
    GDP Licenses
    GDP

    EFI Live License FlashScan V2/V3

    $125.00 USD

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