PERRIN 08-21 Subaru STI Pro Electronic Boost Control Solenoid

This Perrin Pro Electronic Boost Control Solenoid is what you get when you order part number ASM-TAC-731. It's designed to replace the factory boost control solenoid on your 2015-2020 Subaru WRX STI. This part plays a key role in how your turbocharger builds and holds boost pressure, directly impacting how your engine performs under acceleration.

The factory solenoid can sometimes be a bottleneck, especially if you've made other modifications to your engine or turbo system. This Perrin unit is built to handle more demanding situations, offering a more precise and responsive way to control boost. It's a well-made component that aims to give you more consistent and reliable boost control, which can translate to a smoother power delivery and better overall driving feel. Installing this part often pairs well with an ECU tune to take full advantage of its capabilities.

Keep in mind that this solenoid is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation guide for the most accurate fitment and setup procedures for your specific vehicle.