Now only 4 HP Tuners Credits are needed to Tune the E41 ECM of GM Duramax L5P (17-23) - Click Here

Collection: 2024-2026 GM Duramax 6.6L L5P

2024–2026 Duramax 6.6L L5P parts and systems are designed around GM’s current diesel control architecture.
These model years use updated ECM and TCM strategies, emissions integration, and torque management logic that require platform-specific components for correct operation.

26 products

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