2021-2022 3.0 LM2 Duramax SUV HP Tuners Custom Performance ECM Tuning

Get your 2021-2022 LM2 tuning for the 3.0L Duramax equipped Chevy Suburban, Tahoe or GMC Yukon from the experts. With the option to choose between 2 custom tunes designed to bring out the best in both top-end power and towing torque for the 3.0L Duramax. These tunes will improve the drivability and performance of your 3.0L Duramax using the same tuning methods Duramaxtuner has honed over years of tuning the L5P to maximize reliability and longevity of the powertrain. 

Calibrated Power custom tuning is exactly what the LM2 needs to wake it up and unlock its true performance potential. LM2 ECM Unlock Service, ECM Tune, Hardware and Credits included. 

Get the 2 Tune Pack For LM2 Duramax

Benefits:

• Eliminates all feeling of dead pedal
• Speed limiter adjustments for tire size
• Better performance in higher elevations
• More torque in all engine operating ranges (RPMs)
• Increases average HP across the rev range
• Dramatically improved power at higher RPM's
• More confident towing
• Truck feels lighter when accelerating even with a load
• Improved towing performance hauling maximum payload
• Improved transmission durability
• Smoother, crisper shifts 
• No need to remove your factory emissions equipment
• Reduced soot production/build-up
• Maintain factory levels of reliability

Custom Tunes:

Street Tune

• Improved Horsepower & Torque +40 RWHP +100 ft-lbs
  • • Immediate throttle response, no dead pedal feeling
    • Significantly wider torque curve
    • Smooth power curve that’s fun to drive 
    • Most power & torque you can add while maintaining OEM levels of reliability
    • Thermal backdowns automatically manage your EGTs and other engine temperatures to back power down before damage occurs

• Fun Mix of Power and Superior Drive-ability

• • • Quick acceleration - Truck feels lighter
    • Great balance between performance and everyday drivability
    • The throttle pedal responds exactly how you want it to
    • Factory turbo brake retains complete functionality
    • Too much power to safety tow without proper gauges

Tow Tune

• Balance between Daily Driving and Towing

• • • Air-Fuel Ratio limits built into calibration to limit soot production
    • Designed for towing up to 9,000 lbs. 
    • Factory turbo brake retains complete functionality

• Horsepower & Torque Increase +25 RWHP +60 ft-lbs
  • • Get your truck up and moving more quickly
    • More useable power in all driving scenarios
    • Have enough power to “Shift Up, Throttle Back”
    • Get your trailer up and moving more quickly
    • Air-Fuel Ratio limits built into calibration to limit soot production

• Revised pedal sensitivity

• • • Low-speed trailer maneuvering
    • Back up with trailer without lurching

Required Service:

Unlock Your Stock LM2 ECM

Custom Tuning

• Street Tune +40 RWHP +100 ft-lbs
• Tow Tune +25 RWHP +60 ft-lbs

Required Hardware:

RTD4 Hardware by HP Tuners

• Connect > Read > Write > Drive.
• Equipped with Bluetooth®, Proprietary Expansion Port, and Mobile Device Support
• Makes it faster and easier to read/write your vehicle’s software.
• View, chart and log diagnostic data in real-time via the OBDII diagnostic data port.
• View and clear Diagnostic Trouble Codes (DTCs) along with other vehicle module information.

HP Tuners Universal Credits

• 6 credits are required for ECM tuning
• 4 credits are required for TCM tuning

Why Choose DuramaxTuner.com Custom LM2 Tuning?

• DuramaxTuner has 15+ years of experience tuning Duramax trucks
• Designed to be safe for your engine and emissions equipment 
• Fully customized tuning with 100+ calibration changes from stock
• No hacking wires into control units or fuel pump and turbo sensors
• More power and less soot than box programmers
• World Class Customer Service Phone Support!