Tomioka Racing TR 3-Port Electronic Boost Solenoid for Subaru STi 2008+
Tomioka Racing TR 3-Port Electronic Boost Solenoid for Subaru STi 2008+
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(2008-2014) Electronic Boost Solenoid for Subaru Turbo Engines
Our EBCS is a precision-engineered aftermarket replacement specifically designed for 2008-2014 Subaru turbo models. This solenoid delivers faster boost response, enhanced turbo performance, and superior durability compared to OEM solenoids.
Technical Specifications
Enhanced Design: Our Gen 2 solenoids feature improved internal flow paths and superior sealing technology for consistent performance and compatibility with a wider range of fuels including E85.
Vehicle Compatibility
- 2008-2014 Subaru Impreza WRX
- 2008-2014 Subaru Impreza WRX STI
- 2008-2012 Subaru Legacy GT
- 2009-2013 Subaru Forester XT
- Compatible with stock and aftermarket turbo systems
- Works with factory and aftermarket ECU tunes
- Compatible with E85 fuel systems
Performance Features
- Direct OEM replacement with significant performance improvements
- 20% higher flow rate compared to stock solenoids
- Faster boost response and reduced turbo lag
- Improved high-temperature stability for consistent performance
- Reduced pressure drop at high boost levels
- Compatible with E85 and other alternative fuels
- Optimized internal port design for smoother airflow
- Tested to over 1.5 million cycles for maximum reliability
Installation Guide
Installation is straightforward and can be completed in under 30 minutes with basic hand tools:
- Locate the factory boost solenoid on the passenger side of the engine bay
- It's accessible from underneath the intake manifold
- Disconnect the electrical connector by pressing the tab and pulling gently
- Disconnect the vacuum lines, taking note of their orientation
- Remove the mounting bolt(s) securing the solenoid
- Install the new solenoid in the reverse order
- Ensure vacuum lines are reconnected in the correct orientation
- Secure the mounting bolt(s) to factory torque specifications
- Reconnect the electrical connector until it clicks
Pro Tip: No ECU reflash is required for stock applications, but we recommend checking your wastegate actuator function after installation for optimal performance.
OEM vs Aftermarket Comparison
| Feature | OEM Solenoid | Our Premium Solenoid | Improvement |
|---|---|---|---|
| Flow Rate | Base Reference | +20% Increased Flow | 20% Higher Flow |
| Response Time | 10-12ms | <8ms | 25-35% Faster |
| Heat Resistance | Up to 120°C | Up to 135°C | 12.5% Higher |
| Durability | ~500,000 cycles | >1,500,000 cycles | 3x Longer Life |
| Seal Material | Standard Rubber | Fluorosilicone | Superior Fuel Compatibility |
| Body Construction | Cast Aluminum | Precision Anodized Aluminum | Higher Precision |
| Pressure Drop at 30PSI | 15% Drop | 5% Drop | 66% Improvement |
| E85 Compatibility | Not Rated | Fully Compatible | Enhanced Versatility |
