2024-2026 Duramax L5P Transmission Tuning Package Tuning Packages and performance metrics on the

and performance metrics on the go

Core-return eligibility is determined by the date the ECM is received—not the date it is shipped

or Throttle Booster

or exchange of the TCM unlocking

This ECM upgrade kit enables read

2024-2026 Duramax L5P Transmission Tuning Package Tuning Packages and performance metrics on theThe 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