The Max Energy? Power Programmer? offers three (3) stages of power tuning for diesels. Even the highest power level, Stage 3, maintains safe EGT's while towing the maximum weight specified by the vehicle's manufacturer. No other tuner offers this level of power for towing. Hypertech?s low EGT's, proper transmission shifting, and superior tuning that doesn?t require de-fueling, gives the Max Energy? Power Programmer? the performance advantage.