Turbo XS W08-BCS Boost Control Solenoid for 2008-2021 Subaru WRX/STI 2.0L/2.5L

Vehicle Fitment

• 2008-2014 Subaru WRX (2.5L Turbo, AWD)
• 2015-2021 Subaru WRX (2.0L Turbo, AWD)
• 2008-2021 Subaru WRX STI (2.5L Turbo, AWD)

Features

• 3-port electronic boost control solenoid for precise turbo boost management
• Faster spool and more stable boost curves over OEM solenoid
• Compatible with factory and aftermarket turbochargers
• CNC-machined aluminum body with anodized finish
• High-temperature silicone hoses for reliable sealing
• Works with most standalone and piggyback engine management systems
• Improves turbo efficiency and response under acceleration
• Proven to hold stable boost at higher PSI levels

Specifications

• Port configuration: 3-port design
• Material: Anodized billet aluminum housing
• Compatibility: WRX/STI turbocharged engines with factory-style electronic boost control
• Electrical connector: OEM plug-style harness for direct fit
• Drivetrain: AWD only
• Operating range: Up to 30 PSI+ stable control

Included Components

• 1x Turbo XS 3-Port Boost Control Solenoid (W08-BCS)
• 2x High-temp silicone vacuum hoses
• 1x Mounting bracket
• 1x Hardware kit

Product Description

The Turbo XS W08-BCS 3-Port Boost Control Solenoid is a proven solution for WRX and STI owners looking to fine-tune turbocharger response and manage boost pressure with precision. Replacing the restrictive OEM solenoid, this unit offers quicker spool, higher peak boost potential, and smoother pressure control - especially under aggressive throttle or tuned engine conditions.

Engineered for 2008-2021 WRX and STI models with 2.0L or 2.5L turbocharged engines, the W08-BCS is compatible with most aftermarket engine management systems and installs using a direct-fit plug and play harness. Whether you're daily driving or heading to the track, this solenoid ensures consistent performance and reliability at elevated boost levels.