COBB 3-Port Boost Control Solenoid (715750) | Subaru WRX 2008-2014 / STI 2008-2021

The COBB 3-Port Boost Control Solenoid enhances boost regulation for Subaru WRX and STI turbocharged engines, giving tuners greater authority over wastegate duty and boost response. This upgrade provides more stable and predictable boost behavior compared to the factory solenoid, supporting both stock-frame and upgraded turbo configurations.

KEY FEATURES

• Increases boost control precision for WRX and STI applications
• Supports higher boost levels when paired with proper tuning
• 3-port design offers improved wastegate modulation over OEM units
• Designed to integrate cleanly with COBB Accessport calibrations
• Improves consistency of boost delivery during spirited driving

TECHNICAL SPECIFICATIONS

• Electronically controlled 3-port solenoid for turbo boost management
• Robust construction engineered for repeated high-boost operation
• Includes application-specific hardware for secure installation
• Configured to work with COBB closed-loop boost control strategies
• Tested for reliability in high-heat, high-vibration engine bay environments

VEHICLE FITMENT

• Subaru WRX 2008-2014
• Subaru STI 2008-2021

COBB delivers proven, data-driven performance solutions engineered to optimize your Subaru with unmatched precision and reliability.