The used Hypertech Power Tuning Module #41042 maximizes the performance of 6.0L Power Stroke diesel engines in 2003-04 Ford trucks and SUVs and delivers the most powerful, street-legal tuning available for towing the maximum loads allowed by vehicle manufacturers! Only Hypertech's exclusive 3 Stage Tuning delivers power for safe towing, even at the highest horsepower gains. Stage 3 Tuning (+100 hp). Stage 3 Tuning (+100 hp) delivers the best performance under virtually all driving conditions. Stage 2 (+80 hp) and Stage 1 (+50 hp) are calibrated for the conservative driver. And as always, the new PTM is 50-state street-legal.