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.
Installation Manual for Bighead Wastegate Actuator
The Difference:
The Bighead Wastegate Actuator will allow much higher boost levels without the wastegate releasing when compared to stock.
There are 3 Different Models:
BAN24328 works on all 12 Valve engines up to 1998 and 1998.5 24 Valve Cummins Diesel engine
BAN24329 works on 1999-00, All models and 01-02 with the 245HP engine
BAN24328 works on 2003-04 models with the 235/250/305HP engines