Collection: 2024-2026 GM Duramax L5P 6.6L - Tune Files

6.6L Duramax L5P Tune Files

Calibrated tune files for the 2024–2026 GM 6.6L Duramax L5P. A supported device runs the file; no send-in is required for EZ Lynk. Every part is matched to your truck and the rest of your build.

Tune Files

Dieselr-calibrated ECM and TCM tune files matched to your platform and transmission, plus GDP and Chaos Custom Tuning calibrations. A device runs the file; no send-in is required for EZ Lynk.

Compatibility

Organized by confirmed fitment for the 2024–2026 GM 6.6L Duramax L5P.

FAQ

What device do I need to run these tunes?
a supported tuning device, depending on the file.

What's the difference between an ECM and TCM tune?
An ECM tune controls engine fueling and power; a TCM tune calibrates the transmission. Many builds use both.