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Under high-boost conditions, the stock actuator's weak spring allows the wastegate to blow open, limiting midrange torque. Bleed orifices (also known as "boost foolers") just make it worse. Only Banks solves this problem by replacing the boost actuator. BigHead holds the wastegate closed for quicker boost, then controls the opening to maintain peak boost for superior acceleration and mid-range pulling power.BigHead Wastegate Actuator Kit for use with 2001-2004 Chevy 6.6L. Power Now! When turbo exhaust backpressure increases, the stock actuator prematurely blows off the seat, softening boost in the midrange and killing torque. With twice the diaphragm area and spring pressure of the stock wastegate, Banks BigHead Wastegate Actuator keeps the valve seated longer and achieves a higher peak boost, sooner.At peak, BigHead opens the wastegate and holds its position, for precise boost control that gives you crisp acceleration and more mid-range pulling power.
This Part Fits:
Year
Make
Model
Submodel
2001-2004
Chevrolet
Silverado 2500
Base
2001-2004
Chevrolet
Silverado 2500
LS
2001-2004
Chevrolet
Silverado 2500
LT
2004
Chevrolet
Silverado 2500
WT
2001-2004
Chevrolet
Silverado 2500 HD
Base
2001-2004
Chevrolet
Silverado 2500 HD
LS
2001-2004
Chevrolet
Silverado 2500 HD
LT
2004
Chevrolet
Silverado 2500 HD
WT
2001-2004
Chevrolet
Silverado 3500
Base
2001-2004
Chevrolet
Silverado 3500
LS
2001-2004
Chevrolet
Silverado 3500
LT
2004
Chevrolet
Silverado 3500
WT
2002-2004
GMC
Sierra 2500
Base
2001-2002
GMC
Sierra 2500
SL
2001-2004
GMC
Sierra 2500
SLE
2001-2004
GMC
Sierra 2500
SLT
2003-2004
GMC
Sierra 2500
WT
2002-2004
GMC
Sierra 2500 HD
Base
2001-2002
GMC
Sierra 2500 HD
SL
2001-2004
GMC
Sierra 2500 HD
SLE
2001-2004
GMC
Sierra 2500 HD
SLT
2003-2004
GMC
Sierra 2500 HD
WT
2002-2004
GMC
Sierra 3500
Base
2001-2002
GMC
Sierra 3500
SL
2001-2004
GMC
Sierra 3500
SLE
2001-2004
GMC
Sierra 3500
SLT
2004
GMC
Sierra 3500
WT
Banks Power 01-04 Chevy 6.6L Big Head Actuator Kit
$228.00
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