The SpeedFactory Racing 4-Port Boost Control Solenoid Kit allows precise boost control with a PWM (pulsewidth modulation) signal from a source (Engine Control Module or Electronic Boost Controller).

This solenoid can raise the boost level as high as 6-7 times the spring pressure of the wastegate and offers very precise control at very high boost levels.

The 4 Port Solenoid also allows you to use much lower wastegate spring pressures for better boost control when launching .

This kit can be used with single or multiple wastegates, and is compatible with almost every electronic boost controller and tuning software.

This product is for use with external wastegates only.

–25Hz is our suggested starting point for control frequency in your EMS, and gives stable control in MOST setups. 4 port solenoids are more sensitive than 3 port solenoids and finding the correct control frequency to achieve stable boost control for your particular EMS and setup is part of proper boost control tuning. Improper control frequency will result in unstable boost control!

SpeedFactory 4-Port Boost Control Solenoid Kit Features Include:

-0-125 PSI pressure range

– (3) 1/8″ NPT x 1/4″ barbed male fittings and (1) sintered muffler

-24″ wires leads for easy install

-Non-polarized wiring

-Compatible with Haltech, Motec, Hondata, Neptune, AEM, Megasquirt, Holley, KTuner, and many more!

Please see our simple installation diagram in the product images section.