Tomioka Racing 3-Port Electronic Boost Solenoid - 2004-2007 Subaru STI / 2006-2007 Subaru WRX

Tomioka Racing 3-Port Electronic Boost Solenoid - 2004-2007 Subaru STI / 2006-2007 Subaru WRX

The Tomioka Racing 3-Port Electronic Boost Solenoid for the 2004-2007 Subaru STI and 2006-2007 WRX is a direct replacement for the factory unit on these EJ-based applications.

Precision Boost Solenoid for Version 8-9 STI and GD WRX

The Tomioka Racing 3-Port Electronic Boost Solenoid for the 2004-2007 Subaru STI and 2006-2007 WRX is a direct replacement for the factory unit on these EJ-based applications. Engineered to deliver improved boost response and tighter control consistency over the aging OEM solenoid, with 12V DC operation and IP67 waterproof rating.

Plug-and-Play Replacement

Direct plug-and-play replacement for the factory boost control solenoid on applicable GD-era STI and WRX models. Recommended on tuned cars running elevated boost targets where a fresh, tight-tolerance solenoid makes a meaningful difference in boost control accuracy.

Key Features

• Compatible with stock and mild aftermarket turbo systems
• Works with factory and aftermarket ECU tunes
• Direct OEM replacement with performance improvements
• 15% higher flow rate compared to stock solenoids
• Improved boost response and reduced turbo lag
• Enhanced durability for high-boost applications
• Superior heat dissipation for consistent performance

Fitment Notes

• Fits 2004-2007 Subaru STI
• Fits 2006-2007 Subaru WRX

Straight From Subispeed

A direct replacement for worn or underperforming factory boost control solenoids on the Version 8-9 STI and 2006-2007 GD WRX. Simple installation, meaningful consistency improvement on tuned applications.

What's Included

• Tomioka Racing 3-Port electronic boost solenoid
• Wiring connector
• Mounting hardware

About Tomioka Racing

Tomioka Racing has been engineering bolt-on performance parts for Subaru platforms since 2007, with a design philosophy built around factory-style installation and real-world reliability. Every Tomioka Racing product is engineered to work with the factory setup -- clean installation, correct fitment, and durability under sustained use. For WRX, STI, BRZ, and the 86 platform, Tomioka Racing offers one of the most focused and thoroughly developed bolt-on catalogs available at this price point.