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Level 3: +60 HP
Prefer higher RPM operation or holding the gear longer
Three multicolor RGB indicator lights
Level 1: +0 HP
and share custom tune profiles through a secure cloud-based system
2024-2026 Duramax L5P Transmission Tuning Package Cummins Hard Parts Level 3: +60 HPThe 2020 2026 L5P Duramax is known for its smooth shifts and great performance while towing. However, it still leaves a bit to be desired when it comes to shifiting in high performance senarios. It can fall behind due to its drawn out shifts and its weaker clutch holding strength. Changing the factory calibration is especially important when you modify your truck and or install ECM Tuning. Custom TCM Tuning gives you quicker shift changes, smoother