GM Duramax LM2 3.0L Custom Tune (2020–2022)

Unlock the full potential of your 2020–2022 GMC Sierra or Chevrolet Silverado LM2 3.0L Duramax with this custom off-road tuning file. Designed using your truck’s original stock file, this tune ensures full compatibility and avoids common software issues found in generic tunes.

🔧 Key Benefits:

• Improved Power & Torque: Smoother throttle response and enhanced drivability.

• Better Fuel Efficiency: Optimized for MPG without sacrificing performance.

• Reliable & Safe: OEM safety strategies remain in place or are calibrated for higher output.

• Custom-Calibrated: Built from your vehicle’s stock file, not a preloaded template.

⚙️ Requirements:

• Windows 10+ laptop

• HP Tuners VCM Suite (latest beta)

• Internet connection

• 6 tuning credits

• HP Tuners Unlocked ECM + OBD2 interface (not included)

Note: Requires HP Tuners Unlocked ECM and OBD2 interface (sold separately).

⚠️ Compatibility:

• For 2020–2022 LM2 3.0L Duramax with E46 ECM

• Not compatible with late 2022 models using E66 ECM or fully digital gauge clusters

🔥 Tune Options:

• Stock Optimized (0HP)

• Heavy Tow (+15HP)

• Light Tow (+30HP)

• Sport (+40HP)

• Performance (+50HP)

• Race (+60HP)
  (Includes all 6 tune levels — not switch-on-the-fly)

🚨 For off-road use only. All sales final. Confirm compatibility before purchase.
Vehicle must be tuned before any emissions-related modifications.