COBB Tuning 3 Port Boost Solenoid Subaru WRX/STI (GH/GR/GV/VA) Forester XT (SH) Liberty GT (BL/BP)

COBB Tuning 3 Port Boost Solenoid - Subaru WRX/STI (GH/GR/GV/VA) Forester XT (SH) Liberty GT (BL/BP)

COBB Tuning is a name synonymous with precision forced induction management, and their 3 Port Boost Control Solenoid is a genuine step up from the factory unit. Designed to eliminate the boost fluctuations that plague OEM boost control systems, this BCS delivers stable, repeatable boost that gives your tuner a solid foundation to work from — whether you're running stock boost or chasing big power with a larger turbo and external wastegate setup.

This listing covers the COBB Tuning 3 Port BCS for the following Subaru platforms: WRX (GH, GR) 2008–2014, STI (GR, GV, VA) 2008–2021, Forester XT (SH) 2008–2013, and Liberty GT (BL, BP) 2004–2009. Optional 3.2mm (1/4 in) nickel plated fittings are available separately if required for your specific boost line routing.

Important: Custom tuning is required after installation. This solenoid is not a plug-and-play power upgrade — it must be configured through a compatible ECU management solution such as the COBB Accessport.

Key Features

• Eliminates OEM boost fluctuations for stable and repeatable boost control
• Suits stock boost levels through to high power builds with larger turbos and external wastegates
• Plug and play fitment using the factory wiring harness — 18-gauge wiring harness included
• Mounts in the stock location using a custom aluminium bracket and stainless steel hardware
• 3.2mm (1/8 in) nickel plated barbed fittings included; low profile and corrosion resistant
• Rated to operate up to 827 kPa (120 psi)
• Viton spools and seals for extended service life; lubricated with Dow Corning silicone grease
• Waterproof construction — sealed grommet, O-ring on manual override, ultrasonically welded solenoid wires
• Includes boost line, zip ties, and installation instructions covering both internal and external wastegate configurations

Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please confirm your vehicle's year, model, and turbo configuration before ordering.

Not sure if this suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.