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) https://www.turbofastbeaverton.ca/products/universal-hp-tuners-credits?variant=44344959238187

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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!

RTD4 Users: Once you’ve shared your stock read with your tuner in the TDN app, please email us. We’ll notify the tuning company and keep things moving.

TDN Code: TLWN-3194

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. 

We do not support lope tunes or smoke tunes.