Company23 Standard Boost Control Solenoid 2015-2021 WRX

This boost control kit features a proven, industry-leading MAC 3-port solenoid valve for exceptional reliability and performance. Designed with a custom automotive-grade solenoid that matches OEM ECU current and voltage, it includes a high-vibration coil and Viton seals for long-term durability. The new best-in-class stainless steel mounting brackets ensure a secure, OEM-like fit and finish, while OEM electrical connectors make installation truly plug-and-tune. Compared to the factory 2-port solenoid, the 3-port design significantly enhances boost response and control. Kit includes 6mm (1/4") hose fittings.

Installation Instructions