COBB Tuning 3 Port Boost Solenoid Subaru WRX/STI (GDA/GDB/GRB) Forester XT (SG)

COBB Tuning 3 Port Boost Solenoid - Subaru WRX/STI (GDA/GDB/GRB) Forester XT (SG)

COBB Tuning is one of the most trusted names in Subaru performance, and their 3 Port Boost Control Solenoid is a genuine upgrade for any turbocharged build. Whether you're running stock boost or pushing big power, this BCS eliminates the fluctuations and inconsistencies of the factory boost control system, giving you stable, repeatable boost that your tune can actually rely on. It mounts in the stock location, plugs into the factory harness, and is ready to run without cutting or splicing.

This listing covers the COBB Tuning 3 Port Boost Solenoid (SKU: 712750) suited to the following vehicles: Subaru WRX and STI (GDA / GDB) 2001–2007, Subaru WRX STI (GRB), and Subaru Forester XT (SG) 2003–2008. Optional 1/4 inch nickel plated fittings are available separately if required for your boost line routing.

Key Features

• Eliminates boost fluctuations from the OEM boost control system for stable, consistent boost delivery
• Rated to operate up to 120 psi — suitable for stock through high power builds
• Plug and play 18-gauge wiring harness connects directly to the factory plug
• 3.2mm (1/8 in) nickel plated barbed fittings — low profile and corrosion resistant
• Viton spools and seals throughout, lubricated with Dow Corning silicone grease for long service life
• Waterproof construction — ultrasonically welded solenoid wires, sealed manual override, and waterproof wiring grommet
• Includes custom aluminium mounting bracket, stainless steel hardware, boost line, and zip ties
• Supports both internal and external wastegate configurations

Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's year, trim level, and configuration are confirmed before ordering.

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