2024-2026 Duramax CCS HP Tuners Tune Files

Note: These are only the tune files.

IMPORTANT - HPTuners Unlock service requires the original ECM from the truck, replacements will not work. You will require 8 HP Credits (sold separately).

Coopers Custom Tuning (CCS) has perfected their tuning for the 2024-2025 L5P which you can apply via the HP Tuners RTD Gen 4. You can go with a Single or 5-Single Tune Files ranging from 0HP Mod up to 180HP Race Tunes. Not enough? Just let us know and larger files can be made on request with supporting modifications!

Tuning is delivered through the HP Tuners TDN app. Your stock read goes to your tuner in the app and your tune file comes back the same way.

TDN Code: TLWN-3194

We do not support lope tunes or smoke tunes.

• 1 or 5 Single custom tune files
  

Power Levels

• 0hp Mod
• 45hp
• 75hp
• 90hp
• 120hp
• 150hp
• 180hp

Higher power levels can be written with the proper supporting modifications. Please state the HP level and the supporting modifications. 

To effectively tune the L5P/L5D trucks you will need;

• This platform is only supported via MPVI4 (or RTD4) devices. Older MPVI2/3 units are not compatible with the Global B architecture. - RTD Sold separately
• The original ECM from the truck that has been unlocked by HPTuners  - Sold separately
• The tune file and credits to flash the controller - 8 Credits sold separately
  

Additional Notes

• Tuning is delivered on RTD4 devices through the HPTuners TDN service Click here

  • Use TDN Invite code: TLWN-3194

• Theft Lights & messages are normal while the HPT device is connected or is logging
• DEF connector canbus plug is not required; however, a 2020+ L5P DEF (Large) connector will work with trimming. 
• If possible, please grab an Infolog from the OEM ECM before sending it to HP for unlocking.

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