GrimmSpeed Electronic 3-Port Boost Control Solenoid for Aftermarket Turbos Subaru WRX FA20 15-16

The machined adapter also features standard NPT threads, should you choose to upgrade to AN lines and fittings, or even a different boost control solution (manual, standalone, hybrid, etc) down the road. Finally, the GrimmSpeed BCS system will arrive fully assembled and ready for installation.

The advantages of a 3-port boost control system vs. the factory 2-port system are readily apparent during the tuning process. The 3-port systems works by interrupting the boost signal traveling from the turbo to the wastegate. That boost is redirected back into the turbo inlet and re-ingested by the turbo using our machined adapter. This is important, as the factory Mass Airflow Sensor has already measured that air and is expecting that your motor will use it during combustion, rather than venting it to the atmosphere. The factory configuration simply 'bleeds' the signal from between the turbo and wastegate, which creates a system that is a bit less complex, but reacts more slowly and with less precision.

Because this upgraded solenoid affects the way that your vehicle controls boost (that's the point!), it is always recommended that you consult with a tuner immediately following installation. It is not recommended that you drive the car in a way that builds boost without doing so. If you have any questions, don't hesitate to get in touch with us directly!

Features:

1/4in Barbed Fittings - Matches the factory turbo and wastegate hose size
3-Port Solenoid - Proprietary internal modifications prepare the solenoid for extreme conditions below the vehicle
Plug-n-Play Wiring Connector - Plugs directly into the factory wiring harness with no modification required
Flexible Design for aftermarket turbo inlets - No need to mount the solenoid elsewhere in the engine bay, increasing complexity and hose length
GrimmSpeed 3-Port Boost Control Solenoid w/ Plug-n-Play Connector
Laser Cut and CNC bent steel bracket, black zinc plated w/ stainless press-in nuts
Zinc plated barbed fittings, preassembled w/ anerobic sealant
4ft of 1/4in Vacuum Hose w/ zipties
All necessary hardware

Fitments:

Subaru WRX FA20 2015-2022

Note(s):

This product is not for use with the stock FA20 turbo or other stock replacement turbochargers. This solenoid is for aftermarket turbo kits and as such, does not include the required adaptor for the stock FA20 turbo inlet.
Other Part Numbers:
GrimmSpeed #grm057046