Calibrated Power | 2019-2023 GM 4500-6500 L5D Duramax Emission Compliant Tuning

Why you need Switch-On-The-Fly (SOTF) Custom Tuning

• More power and less soot than box programmers
• Emissions Intact – no need to remove your emissions equipment
• Speed limiter adjustments for tire size
• Total flexibility to switch between Power levels while driving
• No need to keep a clunky box plugged in or re-flash your truck to change tunes
• Utilize tuning designed for the spesific task at hand
• Designed to be safe for your engine and emissions system
• DuramaxTuner has 15+ years of custom duramax tuning experince 
• Fully customized tuning with more than 100+ calibration changes from stock
• World Class Customer Service and Phone Support!

Tuning

Sport Tune

• Peak Horsepower & Torque
  • +125 RWHP + 240 ft-lbs
  • Total 445 HP and 890 ft-lbs
  • Fastest possible acceleration
  • No dead pedal
  • Biggest adrenaline rush we can give you
• Inappropriate use of the Sport Tune
  • Too much power for towing without the proper gauges
  • Enough power for an irresponsible driver to damage their truc

Street Tune

• Improved Horsepower & Torque
• +100 RWHP + 180 ft-lbs
• Total 420HP and 830ft/lbs of torque
• No dead pedal feeling
• Fast acceleration - Truck feels lighter
• Mix of Fun and Superior Drive-ability
• Perfect for daily driving
• Smooth and wide power curve
• Pedal response is smooth and precise
• Retain factory turbo-braking feature

Light Tow Tune

• Horsepower & Torque Increase 
  • +80 RWHP +140 ft-lbs 
  • Total 400HP and 790ft/lbs of torque
  • Truck is much more resposive with a load
  • More useable power for all driving scenarios
  • Have enough power to “Shift Up, Throttle Back”
• Balance Between Daily Driving and Light Towing Performance
  • Smooth power curve that makes driving in this tune fun 
  • Custom “SMART EGT Control” will automatically manage your EGTs
  • Air-Fuel Ratio limits built into calibration to minimize soot production
  • Designed to tow less than 8,000 lbs.
  • Factory turbo brake retains full functionality
• Revised pedal sensitivity
  • Great for low-speed trailer maneuvering
  • Prefect for backing up with trailers without lurching

Heavy Tow Tune

• Horsepower & Torque Increase 
  • +40 RWHP + 70 ft-lbs
  • Total 360HP and 720ft/lbs of torque
  • Get your trailer up and moving more quickly
  • Lug in the highest gear while towing on the highway
  • Have enough power to “Shift Up, Throttle Back”
• Safe for Towing Heavy Loads
  • Fix the sluggish towing performance of your L5D
  • Handle steep grades with ease
  • Maintain cruise control speed while towing
  • Increases power, not EGTs (Exhaust Gas Temperature)
  • Custom “SMART EGT Control” will automatically manage your EGTs
  • Air-Fuel Ratio limits built into calibration to minimize soot production
  • Designed to tow 8,000 lbs. up to Gross Vehicle Weight
  • Factory turbo brake retains complete functionality

• Revised pedal sensitivity
• Low-speed trailer maneuvering
  Back up with trailer without lurching

Optimized Stock Tune

• Slight revisions to factory calibration
• Slighly increased levels of power over factory
• Good for troubleshooting a physical problem with your truck
• Great for when someone else drives your truck

Hardware

MPVI3 Hardware by HP Tuners  

• View and clear Diagnostic Trouble Codes (DTCs)
• View, chart, and log data in real-time via the OBDII diagnostic data port.
• Supports standalone data logging
• Display virtual guages on your smart phone to monitor engine paramiters.
• Equipped with Bluetooth®, Proprietary Expansion Port, and Mobile Device Support
• The fastest scanning, logging, and data transmission rates to ensure you capture everything. 
• Makes it faster and easier to read, edit, and write your vehicle’s software.
• Command control vehicle functions like fans, gear select, timing, air-fuel ratio and so much more all in real-time.
• Includes VCM Suite - one of the most powerful and inclusive scanning, diagnostic, logging, and calibration products on the market.

L5D Unlock Cable (Engine Control Module)

• Allows you to unlock your existing stock ECM
• No more having to remove your stock ECM in order to install tuning on your truck
• Flash our custom tunes using the MPVI3 Hardware and required HP Tuners Credits

HP Tuners Universal Credits (Included)

• 8 credits which are required for ECM tuning.

Warning: This product can expose you to chemicals that are known to the State of California to cause cancer. For more information, visit www.P65warnings.ca.gov