Gain 180+ HP over stock and rapidly increase acceleration. Tuning levels engineered for optimal efficiency. Level 1: +30 HP Level 2: +60 HP Level 3: +100 HP Level 4: +140 HP Level 5: +180 HP **Before tuning a 5.9L truck, ensure it is returned to its factory/stock/OEM programming. Failure to do so may brick the ECM due to its programming and cause licensing issues with the HPT software, as the license is applied based on the vehicle's configuration. Provide the info log/read file only after restoring the vehicle to stock**