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