Add this to your cart if you are sending in your ECU to have the PWM Components added to your OBD1 ECU (P28, PR4, P05, P06, P72, P75).

Currently PWM Boost Control is native on eCtune, S300 and very shortly with Neptune.

PWM Boost Control also requires a solenoid to be installed in the car. We carry both the GM Solenoid and AEM Style Solenoid (Mac Valve) in our Electronics section that you can add to your cart as well.