Tomioka Racing TR 3-Port Electronic Boost Solenoid for Subaru STi 2004-2007/ WRX 2006-2007
Tomioka Racing TR 3-Port Electronic Boost Solenoid for Subaru STi 2004-2007/ WRX 2006-2007
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Specifications
Product details shared across all variants.
- Product type
- Turbocharger Boost Solenoid
- Category
- Motor Vehicle Engine Parts
- Item condition
- New
- Manufacturer type
- Aftermarket
- Shipping dimensions (L × W × H)
- Shipping weight
- 2.0 lb
Billable shipping weight; may include dimensional weight.
(2002-2007) Electronic Boost Solenoid for Subaru Turbo Engines
Our Electronic Boost Solenoid is a precision-engineered aftermarket replacement specifically designed for 2002-2007 Subaru turbo models. This solenoid improves boost response, enhances turbo performance, and provides superior durability compared to OEM solenoids.
Technical Specifications
Vehicle Compatibility
- 2002-2007 Subaru Impreza WRX
- 2004-2007 Subaru Impreza WRX STI
- 2005-2006 Subaru Legacy GT
- 2004-2007 Subaru Forester XT
- Compatible with stock and mild aftermarket turbo systems
- Works with factory and aftermarket ECU tunes
Performance Features
- 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
- Optimized internal port design for smoother airflow
- Tested to over 1 million cycles for maximum reliability
- Perfect for both stock and modified applications
Installation Guide
Installation is straightforward and can be completed in under 30 minutes with basic hand tools:
- Locate the factory boost solenoid on the intake manifold near the throttle body
- Removal of intercooler may be required for easier access
- 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.
🔌 Plug & Play Installation
- Direct plug-and-play with factory Subaru electrical connector
- No wiring modification required
- Fully compatible with OEM ECU and aftermarket tunes
- Simple install with basic hand tools
OEM vs Aftermarket Comparison
| Feature | OEM Solenoid | Our Premium Solenoid | Improvement |
|---|---|---|---|
| Flow Rate | Base Reference | +15% Increased Flow | 15% Higher Flow |
| Response Time | 12-15ms | <10ms | 20-30% Faster |
| Heat Resistance | Up to 115°C | Up to 125°C | 8.7% Higher |
| Durability | ~350,000 cycles | >1,000,000 cycles | 3x Longer Life |
| Seal Material | Standard Rubber | Viton | Superior Chemical Resistance |
| Body Construction | Cast Aluminum | Machined Anodized Aluminum | Higher Precision |
| Boost Consistency | Degrades Over Time | Maintains Performance | More Reliable Long-Term |
