HP Tuners Transmission Tuning for your 2017-2023 L5P Duramax
You must have an unlocked T87 or T93 TCM to load custom tuning
FULL CUSTOM TUNING with LIFETIME SUPPORT
Maximize the performance and lifespan of your L5P transmission with our custom tuning service. Ideal for heavy towing and high horsepower trucks, our expertly-designed tuning will optimize your transmission for peak efficiency. Increase the longevity of your vehicle and improve overall performance with our L5P transmission tuning.