Switch on the Fly Tune Only L5P (2020-2023)

Get All Five Custom Tunes, Switchable while driving (Switch-On-The-Fly)

• Emissions Intact – no need to remove your emissions equipment

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

• Instantly Switch Between Power Levels
• Total flexibility to select the power level you need  
• No need to plug in a clunky box and re-flash your truck to change tunes
• Designed to be safe for your engine and emissions equipment
• DuramaxTuner has 14+ years of experience with Custom Switchable Tuning
• Fully customized tuning with more than 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!

Sport Tune

• Peak Horsepower & Torque
• +150 RWHP + 270 ft-lbs
• Total 595 HP and 1180 ft-lbts
• 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 his 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 everyday
• Smooth power curve
• The throttle pedal responds exactly how you want it to
• Retain factory turbo-braking feature

Light Tow

• Balance between Daily Driving and Towing
• Smooth power curve that’s fun to drive
• Custom “SMART EGT Control” will automatically manage your EGTs
• Air-Fuel Ratio limits built into calibration to limit soot production
• Designed to tow less than 8,000 lbs.
• Factory turbo brake retains complete functionality
• Horsepower & Torque Increase +80 RWHP +144 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”
• Revised pedal sensitivity
• Low speed trailer maneuvering
• Back up with trailer without lurching

Heavy Tow

• Safe for Towing Heavy
• Increase power, not EGTs (Exhaust Gas Temperature)
• Custom “SMART EGT Control” will automatically manage your EGTs
• Air-Fuel Ratio limits built into calibration to limit soot production
• Designed to tow 8,000 lbs. up to GVW
• Factory turbo brake retains complete functionality

• Horsepower & Torque Increase +40 RWHP + 72 ft-lbs
• Get your trailer up and moving more quickly
• Lug in the gear you want while towing
• Have enough power to “Shift Up, Throttle Back”
• Revised pedal sensitivity
• Low speed trailer maneuvering
  Back up with trailer without lurching

Optimized Stock

• Slight revisions to factory calibration
• No significant increase of peak power
• Good for troubleshooting a physical problem with your truck
• Great for when someone else drives your truck

Required Options

Modified ECM Purchase (Engine Control Module)

• We stock modified ECM hardware and ship directly to you
• Remove your factory ECM and replace with our Modified ECM
• Flash our custom tunes using the RTD Hardware and required HP Tuners Credits

MPVI3 Hardware by HP Tuners

• Connect > Read > Edit > Write > Drive.
• Equipped with Bluetooth®, Proprietary Expansion Port, and Mobile Device Support
• Makes it faster and easier to read, edit, and write your vehicle’s software.
• VCM Editor and VCM Scanner and programming/USB cables, making up the essentials of VCM Suite - one of the most powerful and inclusive scanning, diagnostic, logging and calibration products on the market.
• Full support for our latest rendition of Track Addict - the fastest scanning, logging and data transmission rates to ensure you capture everything.
• VCM Scanner, the most powerful and comprehensive scan tool on the market.
• 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. Command control functions like a closed loop, fans, gear select, timing, air-fuel ratio and so much more all in real-time. 

HP Tuners Universal Credits

• 8 credits are required for ECM tuning

Transmission Tuning

• 10-Speed Allison Transmission for 2020+ L5P Duramax

  Extra attention has been invested to develop our engine tuning for L5P’s with the 10-Speed Allison. Currently, there is no TCM Tuning available for these transmissions. However, we have spent countless hours going through every aspect of the ECM Tune File to ensure you have the best driving and most effective tuning possible.

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