GrimmSpeed 3-Port Electronic Boost Control Solenoid (57002) for Turbo Subarus

If you're a proud owner of a turbocharged Subaru, you know that boost control is crucial for maximizing performance. The GrimmSpeed 3-Port Electronic Boost Control Solenoid (BCS) is engineered specifically for turbo Subarus, providing a direct replacement for your OEM 2-port solenoid. This upgrade not only enhances your vehicle's boost response but also gives your tuner the precision they need to dial in rock-solid boost levels.

Boost Control Redefined

The GrimmSpeed BCS allows for high-resolution boost control, enabling quicker turbo spool and tighter control of boost levels throughout your power curve. With a balanced valve capable of withstanding up to 120 psi, you can expect immediate response without any lag. This solenoid is designed for those who demand performance and reliability from their Subaru.

Design and Installation

Installation is a breeze with the model-specific brackets that come with the solenoid. These brackets ensure a factory-like fit and finish, making it easy to swap out your OEM solenoid without any hassle. Plus, the solenoid uses a Subaru wiring harness connector, allowing you to simply unplug your old unit and plug in the new one—no splicing or cutting wires required.

Durability and Materials

Built to withstand the extreme conditions of your engine bay, the GrimmSpeed BCS features:

• Special seals to protect against moisture
• High-temperature coils that maintain response times under 6 milliseconds
• Weatherproof terminal seals crimped using DELPHI equipment
• Laser-cut, black zinc-plated mounting brackets for corrosion resistance
• Threaded PEM nuts for a secure connection, eliminating the risk of stripped threads
• Low-profile 1/8" NPT nickel-plated fittings for a robust installation

Features

• Decrease spool time—flows 10% more than competitors
• Plug and play installation into OEM harness
• Compatible with factory Subaru ECU for safe operation
• Durable nickel-plated fittings—no more brittle plastic!
• Simple 15-minute installation with comprehensive guides

Fitments

This solenoid is compatible with the following models:

• Subaru STI 2004-2007
• Subaru WRX 2006-2007
• Subaru Forester XT 2004-2008
• Subaru Baja XT 2004-2006

Customer Feedback

Subaru WRX 2006 owner says, “I installed the GrimmSpeed BCS last weekend and was blown away by the difference in spool time. It feels like I’m driving a completely different car!”

Another Subaru STI 2005 enthusiast mentioned, “The install was straightforward, and I love that I didn’t have to cut any wires. The boost levels are rock-solid!”

Upgrade your Subaru's boost control with the GrimmSpeed 3-Port Electronic Boost Control Solenoid and experience the performance benefits that come with precise tuning and reliable operation.