2021-2024 SUV 3.0 LM2 Duramax HPTuners AMDP Custom Tuning

2021-2024 Chevy Suburban/Tahoe/GMC Yukon/Cadillac Escalade 3.0L LM2 Duramax

Unlock the hidden potential of your luxury full-size SUV with AMDP Custom Tuning. Engineered specifically for 2021-2024 models of the Chevy Suburban, Tahoe, GMC Yukon, and Cadillac Escalade, this HP Tuners-based custom tuning delivers noticeable gains in power, torque, throttle response, and overall drivability while preserving the refined, reliable character these vehicles are known for.

Key Features & Benefits:

• Level 1: 0 HP 

  • Designed for drivers that are 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.

  • Optimized for performance driving with significantly improved throttle response and power delivery across the RPM range.
    

  • Not recommended for heavy towing due to increased thermal load; ideal for spirited driving or light-duty applications.

• Optimized for real-world use: Smoother throttle mapping, reduced lag, enhanced shift quality, and better towing manners without sacrificing long-term reliability.
• Maintains factory-like refinement – ideal for daily drivers, family haulers, or luxury SUVs that demand both capability and comfort.

Elevate your driving experience even further with AMDP's optional TCM (Transmission Control Module) tuning for the 10-speed automatic (10L80). This synchronized ECM + TCM calibration is highly recommended when running higher power levels or heavy towing:

• Firmer, quicker shifts with reduced shift times for crisper acceleration and better power delivery.
• Optimized shift points and torque converter lockup strategy for improved efficiency, reduced slip, and less heat buildup during towing or spirited driving.
• Enhanced overall drivability – smoother light-throttle transitions, eliminated lazy or delayed shifts, and more confident highway passing.
• Maintains reliability with safe torque management limits tailored to your power level.

TCM tuning is available as an add-on through your AMDP-authorized tuner. It requires the appropriate HP Tuners TCM licensing/unlock (via send-in service for the T93/TCM module on these platforms) and pairs perfectly with the engine tune for a fully coordinated performance package.

Requirements for Installation:

• HP Tuners MPVI4 interface device.
• HP Tuners TDN App (Tune Delivery Network) for seamless file exchange and flashing.
• HPTuners send-in module unlock service – required to access and modify the factory ECM.
• CAN bus plugs – essential hardware to enable proper communication
• Do not delete vehicle until tuning is performed

Here is a video showcasing how to use the RTD system to tune:

https://www.youtube.com/shorts/MiKLDyEGMJk

The AMDP RTD Invite Code is: MNFS-4601

AMDP's proven calibration expertise ensures your Escalade, Yukon, Suburban, or Tahoe gets a safe, emissions free, and highly refined tune that transforms the driving experience. Whether you're towing heavy loads, merging onto highways with confidence, or simply enjoying more responsive power delivery, AMDP Custom Tuning elevates your Duramax-powered SUV to the next level.