2024-2026 L5P Duramax Custom Performance ECM Tuning

Sport Tune (+110 RWHP + 330 ft-lbs)

• Peak Horsepower & Torque 
  • Total of 555HP and 1370ft-lbs of torque
  • Quickest acceleration possible
  • Best tune for achieving peak fuel economy
• Inappropriate use of the Sport Tune
  • Too much power for towing without a proper gauge setup
  • Enough power for an irresponsible driver to damage their truck

Street Tune (+80HP and +240ft lbs)

• Great for Daily Driving Power
  • Total of 520RWHP and 1,280ft-lbs of torque
  • 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 Driveability
  • Love driving the truck everyday
  • Smooth Power Curve
  • Throttle pedal responds exactly how you want it to
  • Retains factory turbo / exhaust brake feature

Light Tow Tune (+50HP and +150ft lbs)

• Smooth Towing Up To 8,000 lbs.
  • Total of 490RWHP and 1,190ft-lbs of torque
  • Get your trailer up and moving more quickly
• Safe Power For Light Towing
  • Increase power, not EGTs (Exhaust Gas Temperature)
  • Air-Fuel Ratio limits built into calibration to limit soot production

Heavy Tow Tune (+30HP and +90ft lbs)

• Safe Power for Towing Heavy
• Total of 470RWHP and 1,130ft-lbs of torque
• Increase Power, not EGTs (Exhaust Gas Temperature)
• Custom “SMART EGT Control” automatically manages your EGTs
• Air-Fuel Ratio limits built into calibration to limit soot production
• Designed to tow 8,000 lbs. up to GVWR
• Retains factory turbo / exhaust brake feature
  
  • 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

TCM Tuning For 2024-2026 L5P T93 TCMs

The 10-Speed Allison found in your 2024-2026 L5P Duramax is known for its smooth shifts and great towing performance. However, when it comes to shifiting in high performance senarios it still leaves a bit to be desired.

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 operation, and a more optimized RPM operating range to increase the overall amount of power making it to the wheels.

TCM Tuning Features:

Standard Shift Point File

1. Similar shift feel to stock with optimized shift points and timing
2. Great for those who daily drive or let other people use thier truck
3. Perfect for trucks with stock tire size and turbo setups.
   
4. Provides the best fuel economy possible

Elevated Shift Point File

1. For trucks with upgraded turbochargers
2. Running 35”+ size tires
3. Prefer higher RPM operation or holding the gears longer
4. Want to maximize custom ECM tuning performance

TCM Tuning is especially important for trucks with:

• ECM Tuning (optimizes your power output)
• Larger tires (35”+)
• Modified turbos
• Built transmissions
• Any modification that can impact 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

 What's Included:

• (1) Custom Tune(s)
  • Single Tune or...
  • 4 Tune Pack
• Free Lifetime Tuning Support
  • Customer support from Calibrated Power for anything you might run into along the way
  • Adjustments for tire size, altitude changes, or calibration improvements. 
• HP Tuners Credits (Required)
  • (8) Credits required for unlocking and tuning your 6.6L Duramax ECM
  • (4) Credits required for unlocking and tuning your 6.6L Duramax TCM
• HP Tuners RTD4 Flash Tool (Required)
  • Connect > Read > Write > Drive.
  • Equipped with Bluetooth® mobile device support
  • Makes it faster and easier to read, edit, and write your vehicle’s software.
  • One of the most powerful scanning, diagnostic, data logging, and calibration flashing tools on the market.
• ECM Unlock Service 
  • Unlocks your factory ECM to allow custom tuning file upload
  • 5-7 business day turn around
  • Required for flashing tune files to your 2024,2025 and 2026 L5P ECM
• Round Trip Shipping
  • Calibrated Power covers shipping for ECM + TCM bench unlocking
• (Optional) TCM Tuning
  • Adjusts TCM Tuning calibration to optimize power from custom ECM tuning
  • Customized adjustments available 
  • Unlocked T93 TCM Required