

L5P owners—your wait is over. Custom emission compliant ECM tuning is officially available, adding up to +110 HP / +330 ft-lbs, while keeping emissions intact.
- Add up to +110HP and +330 ft-lbs of torque
- Designed to work with your stock emissions system in-tact
- Fully customized tuning optimized for your stock or modified truck
- Custom Tune for aftermarket upgrades like drop-in turbo upgrades and injectors
- Designed to be safe for your engine and emissions equipment
- Improved pedal response for better power delivery
- More power and less soot than box programmers
- Speed limiter adjustments
- Revert back to stock tuning at any time
- FREE - World Class Customer Service Phone Support!
- USA based tuner with over 16+ years of diesel tuning experience
- TCM Tuning for 24+ 10-Speed L5P's now available!
What's Included:
-
(1) Custom Tune(s)
- Single Tune or...
- 4 Tune Pack
-
Free Lifetime Tuning Support
- Customer support 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
- 3-5 buisness day turn around
- Required for flashing tune files to your 2024,2025 and 2026 L5P ECM
-
Round Trip Shipping
- We cover 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
Product Details
L5P owners—your wait is over. Custom emission compliant ECM tuning is officially available, adding up to +110 HP / +330 ft-lbs, while keeping emissions intact.
- Add up to +110HP and +330 ft-lbs of torque
- Designed to work with your stock emissions system in-tact
- Fully customized tuning optimized for your stock or modified truck
- Custom Tune for aftermarket upgrades like drop-in turbo upgrades and injectors
- Designed to be safe for your engine and emissions equipment
- Improved pedal response for better power delivery
- More power and less soot than box programmers
- Speed limiter adjustments
- Revert back to stock tuning at any time
- FREE - World Class Customer Service Phone Support!
- USA based tuner with over 16+ years of diesel tuning experience
- TCM Tuning for 24+ 10-Speed L5P's now available!
What's Included:
-
(1) Custom Tune(s)
- Single Tune or...
- 4 Tune Pack
-
Free Lifetime Tuning Support
- Customer support 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
- 3-5 buisness day turn around
- Required for flashing tune files to your 2024,2025 and 2026 L5P ECM
-
Round Trip Shipping
- We cover 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