When nothing less than more will satisfy you, go with Banks Big Hoss Module. Big Hoss is a calibrate - to - order module, in up to 5 power levels (for 1999 - 03 models), that adds up to 120 hp and 233 lb - ft (with recommended airflow improvements). A pyrometer is recommended. Tunes pulse width and timing. Up to 5 power levels Level 1 up to 45 hp 79 lb - ftLevel 2 up to 60 hp 111 lb - ft Level 3 up to 85 hp 151 lb - ft Level 4 up to 100 hp 215 lb - ft (Levels 1 - 4 emissions compliant) Level 5 up to 120 hp 233 lb - ft (Non - street, high - performance use only). Make it a Power Combo When you group the Big Hoss Module together with other components you save even more money. 5 levels to choose from, must select when ordering Levels 1 - 4 are emissions compliant Level 5 is race only A calibrate - to - order module