Cobb 15-17 Subaru WRX 3-Port Boost Control Solenoid subaru-wrx-2013 On our 305 hp test

On our 305 hp test vehicle running 20-22 psi of boost

Use the COBB Overflow Tank and Washer Reservoir filler to clean up your engine bay and gain additional room for intercooler piping

higher resolution screen

a silicone crankcase ventilation hose

Cobb 15-17 Subaru WRX 3-Port Boost Control Solenoid subaru-wrx-2013 On our 305 hp testThe COBB 3 Port Boost Solenoid (BCS) is an excellent upgrade for modern turbocharged vehicles, enabling precise boost control in a tidy package that is easy to install and tune. Our BCS will eliminate boost fluctuations inherent in the OEM boost control system, providing stable and repeatable boost control to base the vehicle's tune on. It is equally capable of providing this stable boost control at stock boost levels as well as extremely high boost