HP TUNERS CREDIT PURCHASE INSTALL
Changing that factory calibration is especially important for you when you modify your truck and/or install ECM Tuning. The 6-Speed Allison found in your 2017-2019 L5P Duramax earned its reputation for excellence largely because of the advanced electronic control provided by the TCM (Transmission Control Module). However, we have spent countless hours going through every aspect of the ECM Tune File to ensure you have the best driving and most effective tuning possible. Currently, there is no TCM Tuning available for these transmissions.