Cobb 15-21 Subaru WRX 3-Port Electronic Boost Control Solenoid

If you're looking to get more consistent and reliable boost control from your 2015-2021 Subaru WRX, this 3-port electronic boost control solenoid from Cobb is a solid option. It replaces the factory boost solenoid, which can sometimes struggle to hold boost accurately, especially when you start modifying your car's intake or exhaust systems. This updated solenoid helps your car's computer manage boost pressure more precisely, leading to a smoother power delivery and better overall performance.

Cobb built this solenoid with a focus on accuracy and durability. It's designed to handle the demands of a tuned turbocharged engine, ensuring that your boost levels stay where they're supposed to be. Installing this part is a common step when tuning a WRX, as it allows for more control over the turbocharger's wastegate actuation. You'll typically see improved boost response and a more stable boost curve after installation, especially when paired with an appropriate ECU tune.

This solenoid is a direct replacement for the stock unit, making installation straightforward for someone familiar with working on their WRX. It's a well-made component that addresses a common limitation in the factory boost control system, helping you unlock more of your car's potential safely.