Fits: 1999–2003 Ford E-350 Super Duty 2000–2003 Ford Excursion 1999 Ford F-250 1999–2003 Ford F-250 Super Duty 1999–2003 Ford F-350 Super Duty 1999–2003 Ford F-450 Super Duty 1999–2003 Ford F-550 Super Duty Banks Power24401Wastegate ActuatorsPower 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.Banks Power Big Head wastegate actuators will strongly seat and hold the valve, preventing 'blow-open" at higher pressures and adding huge torque through midrange rpm. For work or play, Banks Power offers your truck impressive performance.