With twice the diaphram area and spring pressure of the stock wastegate; BigHead keeps the valve seated longer; raising peak boost significantly. Delivers precise boost control; improves Duramax; Cummins; Power Stroke acceleration.
- Big Head Actuator Kit-2001-04 Chevy 6.6
Features: - Doubles Stock Diaphragm Area
- Doubles Stock Diaphragm Spring Pressure
- Massive Torque Right From Idle
- Higher Peak Boost Sooner
- More Mid Range Muscle
Vehicle Fitments
- Chevrolet Silverado 2500 HD 2001 to 2004
- Chevrolet Silverado 3500 2001 to 2004
- GMC Sierra 2500 HD 2001 to 2004
- GMC Sierra 3500 2001 to 2004