20-22 Duramax LM2 Tuning HP Tuners

Unlock the full potential of your 2020-2022 GM Sierra or Silverado 1500 equipped with the 3.0L LM2 Duramax engine with our custom tuning package. 

Designed to enhance performance, improve drivability, and maintain reliability, this tuning solution offers three distinct power levels tailored to your driving needs.

This product is for the pickup only, all of the SUV 3.0's are E66 ECM which is a different product option.

This product is for NON-REFRESH Trucks Only!! An Easy way to tell if the truck is a 20-22 or a 22.5 refresh is the center radio display. If it has the large new display then it is a 22.5+ truck and the E66 controller.

Whether you're looking for emissions-compliant optimization or maximum power output, our tunes deliver exceptional results while preserving the factory safety parameters.

The ECM is required to be sent to HPTuners to be unlocked

Key Features:

• Three Power Levels: Choose from three expertly crafted tunes to match your performance goals.

• Improved Throttle Response: Eliminates dead pedal feel for a more responsive driving experience.

• TCM Tuning Available : Synchronized ECM and TCM calibrations ensure smoother shifts, better torque delivery, and improved towing performance.

• HP Tuners MPVI3+ Required: Tunes require an unlocked E46 ECM and T93 TCM, with installation via HP Tuners MPVI3+ (not included).

Power Levels:

• Level 1: 0 HP 

  • Designed for drivers seeking a delete-only option.

  • Maintains stock power output while optimizing engine efficiency.
    

  • Ideal for daily driving with enhanced fuel economy and reliability.
    

• Level 2: +30 HP Over Stock

  • Adds approximately 30 HP and 70 lb-ft of torque over stock for a noticeable performance boost.

  • Enhances mid-range torque for better acceleration and towing capability.

  • Maintains factory safety parameters and emissions equipment for compliance.

  • Improved fuel economy under light throttle or highway driving conditions.
    

• Level 3: +50 HP Over Stock

  • Delivers maximum power with approximately 50 HP and 110 lb-ft of torque over stock 

  • Requires an aftermarket S&B cold air intake (recommended) to ensure safe operation due to increased airflow demands.

• Instructions!! 
  • Please Email us your stock read and a info log to Dieseldna-calibrations@protonmail.com