Boost Control Solenoid - 4 Port (4BCS)

This boost control solenoid gives the ECU precise control over boost so the car is easier to tune and more consistent under load. It is the kind of part that matters when you want boost control to actually do what the map says.

Applications: Turbocharged applications using ECU-controlled boost. A good buy when you want cleaner boost control, better response, and more confidence in the tune.