Duramax LMM Tuning (2007–2010)

Duramax LMM Tuning (2007–2010)

The LMM introduced diesel particulate filter (DPF) emissions equipment to the Duramax lineup, but underneath it remains a strong and capable platform. With the right ECM and TCM tune, the LMM delivers excellent power, improved throttle response, and better fuel economy — whether you're running emissions equipment or have deleted your truck.

ECM Tuning

LMM ECM tuning addresses factory fueling restrictions, torque management, and emissions-related limitations to unlock the engine's true potential.

  • Fueling and timing optimization
  • VGT turbo boost and vane control tuning
  • Torque management removal
  • DPF, EGR, and DEF delete tuning available
  • Power, tow, and economy calibrations available

TCM Tuning

Keep your Allison transmission in step with your engine upgrades with a matched TCM calibration for improved shift quality and long-term reliability.

  • Shift point and pressure optimization
  • Torque converter lockup tuning
  • Matched to your ECM calibration for seamless drivability

Supported Platforms

  • EFI Live — Full ECM & TCM read/write with DSP5 switch support
  • HP Tuners — Versatile platform for street and performance builds

Ready to tune your LMM? Contact us to discuss your build and get the right calibration for your truck.