Duramax LM2 Refresh Tuning (2022–2022.5)

Duramax LM2 Refresh Tuning (2022–2022.5)

The LM2 Refresh brought updated calibration strategies and revised emissions management to the 3.0L inline-6 Duramax platform. While mechanically similar to the pre-refresh LM2, the updated ECM requires current tooling and calibrations to properly tune — and responds well to optimization for power, torque, and drivability.

ECM Tuning

LM2 Refresh ECM tuning targets the updated fueling, boost, and torque management strategies introduced with the mid-cycle refresh.

  • Fueling and timing optimization
  • Turbo boost and response tuning
  • Torque management removal
  • Power, tow, and economy calibrations available
  • Supports stock and modified builds

Supported Platforms

  • HP Tuners — Full ECM read/write for LM2 Refresh applications
  • EZ Lynk AutoAgent — Cloud-based remote tune delivery

Ready to tune your LM2 Refresh? Contact us to discuss your build and get the right calibration for your truck.