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

• More power and less soot than box programmers
• Emissions Intact – no need to remove your emissions equipment
• 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 specific task at hand
• Designed to be safe for your engine and emissions system
• DuramaxTuner has 15+ years of custom duramax tuning experience 
• Fully customized tuning with more than 100+ calibration changes from stock
• No hacking wires into control units or fuel pump and turbo sensors
• World Class Customer Service and Phone Support!

Tuning

Sport Tune

• Peak Horsepower & Torque
• +150 RWHP + 270 ft-lbs
• Total 595 HP and 1180 ft-lbs
• Fastest possible acceleration
• Firm shifting
• 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 truck

Street Tune

• Improved Horsepower & Torque
• +100 RWHP + 180 ft-lbs
• No dead pedal feeling
• Most power & torque you can add while maintaining OEM levels of reliability
• Fast acceleration - Truck feels lighter
• Mix of Fun and Superior Drive-ability
• Love driving the truck every day
• Smooth power curve
• The throttle pedal responds exactly how you want it to
• Retain factory turbo-braking feature

Light Tow Tune

• Horsepower & Torque Increase 
  • +80 RWHP +144 ft-lbs 
  • Truck is much more resposive with a load
  • More useable power in all driving scenarios
  • Have enough power to “Shift Up, Throttle Back”
• Balance between Daily Driving and Towing
  • Smooth power curve that’s fun to drive with
  • 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
  • Backing up with trailers without lurching

Heavy Tow Tune

• Horsepower & Torque Increase 
  • +40 RWHP + 72 ft-lbs
  • Get your trailer up and moving quickly
  • Lug in the gear you want while towing
  • Have enough power to “Shift Up, Throttle Back”
• Safe for Towing Heavy
  • 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
• Slightly 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 gauges on your smart phone to monitor engine parameters.
• 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.

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.

Add Transmission Tuning! 

• 6 Speed Allison TCM Tuning 

  The 6-Speed Allison found in your 2017-2019 L5P Duramax earned its reputation for excellence largely because of the advanced electronic control provided by the TCM (Transmission Control Module). Changing that factory calibration is especially important for you when you modify your truck and/or install ECM Tuning. Custom TCM Tuning gives you quicker shifts, smoother operation and an overall a better driving experience.

• 10 Speed Allison TCM Tuning

  The 10-Speed Allison found in your 2020-2023 L5P Duramax is known for its smooth shifts and great performance while towing. However, it still leaves a bit to be desired when it comes to shifting in high performance scenarios. It can struggle to keep up due to its constant drawn-out shifts and its weaker clutch holding strength. Changing the factory calibration is especially important when you modify your truck and/or install ECM Tuning. Custom TCM Tuning gives you quicker shift changes, smoother transmission operation, and an overall better driving experience.

• Why you want TCM Tuning.

  • Works with ECM Tuning to provide smooth shifting and superior drive-ability
  • Torque converter lockup strategy helps you put power to the ground when you need it the most
  • Improve clutch holding capacity with increased line pressure
  • Makes your truck feel more powerful
  • Prevents short-shifting in performance applications
  • TCM Tuning in the best tool to ensure your engine is operating within its preferred rev range

  TCM Tuning is especially important for trucks with:

  • Custom ECM Tuning
  • Larger tires (35”+)
  • Modified turbo(s)
  • Built transmission
  • Any modification that impacts operating RPMs

  Towing & Performance

  • Use the wider torque curve provided by ECM Tuning
  • Keep your truck in its power-band when lugging up a grade
  • Quicker shifts mean less time between gears and more time putting power to the ground
  • Optimize your aftermarket performance parts

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