This extremely compact Solenoid only has a 2 wire installation making installation very easy.

Ideal upgrade for various turbocharged applications including:
Subaru Impreza WRX/STi 93-07
Mitsubishi EVO V-IX

**Please note:**
An ECU remap is required to gain the full benefits of this upgraded boost control solenoid.


The standard factory boost management relies upon on a limited and inefficient actuator. When boost is increased beyond standard levels with the use of aftermarket ECU’s and Reflash software etc, the standard actuators normally fail to properly maintain boost resulting in spikes, drops and unstable pressures. This can not only damage your engine but destroy any potential performance gains.

The R-Spec 3 port valve is a true solenoid. It is rated to hold boost pressures far in excess of levels that any petrol turbocharged engine is ever likely to see. This product is especially usefull for tuners when increasing factory boost levels beyond standard.

Using this valve in conjunction with a remap etc avoids the extra cost normally involved in additional tuning of standalone electronic boost controllers.

Available for most factory turbocharged applications as well as a replacement for many aftermarket boost controllers.