HYBRID TMS Dual Outlet (2015-on WRX/ Forester)

🔧 Product Description

The HYBRID TMS Dual Outlet Blow-Off Valve from Go Fast Bits (GFB) is a world-first dual-port venting system designed for modern Subaru FA20 turbocharged engines including WRX, Forester XT, and Levorg applications.

Originally developed to solve stalling and drivability issues caused by atmospheric blow-off valves on MAF-based systems, the Hybrid combines stable recirculation with aggressive blow-off sound when required.

Its unique staged dual-outlet design allows controlled venting for improved drivability while still delivering the iconic turbo sound under load.

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⚙️ Key Features

• Dual outlet staged venting (recirc + atmosphere)
• Direct bolt-on replacement for OEM diverter valve
• Designed for Subaru FA20 turbo engines
• Fully adjustable venting: recirc / 50:50 / full atmosphere
• CNC-machined aluminium construction
• Proven GFB Hybrid TMS technology
• Helps prevent stalling and compressor surge
• High boost handling capability
• No modifications required

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🏁 Performance Benefits

⚡ Improved Throttle Response

Reduces compressor surge and maintains airflow stability during gear changes for sharper throttle response.

🚀 Faster Boost Recovery

Helps the turbo return to peak boost faster after shifts, improving drivability and acceleration feel.

🔒 Stable Boost Control

Staged venting prevents sudden airflow disruption, improving consistency under load.

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🔬 How the Hybrid System Works (TMS Technology)

The Turbo Management System (TMS) uses dual-stage venting control:

• Recirculation port opens first → stabilises airflow and prevents stalling
• Atmospheric port opens under higher demand → delivers blow-off sound
• Progressive closure maintains residual boost pressure

👉 Result: smoother transitions, improved drivability, and reduced turbo lag

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🔊 Venting Options

Recirculating Mode (OEM Style)

• Quiet operation
• Best for daily driving and tuned setups

50/50 Mode (Balanced)

• Mild blow-off sound
• Performance + drivability balance

Full Atmosphere Mode

• Aggressive blow-off sound
• Maximum audible turbo release

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🚗 Vehicle Applications

• Subaru WRX MY14-on (FA20 engine)
• Subaru Forester XT MY14-on (FA20 engine)
• Subaru Levorg FA20 Turbo MY16-on
• FA20 turbocharged Subaru platforms

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🔩 Specifications

• Product Type: Dual Outlet Blow-Off Valve
• Technology: GFB Hybrid TMS
• Material: CNC-machined aluminium
• Configuration: Adjustable venting system
• Fitment: Direct bolt-on
• Engine: FA20 turbo

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🛠️ Installation Notes

• Direct replacement for OEM diverter valve
• No tuning required
• Uses factory vacuum/boost lines
• Fully reversible installation
• Venting mode adjustable depending on setup

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💡 Why Choose the Hybrid TMS?

If you want:

• Reliable turbo performance with optional sound
• Improved drivability on modern Subaru turbo engines
• Reduced stalling and compressor surge issues
• A proven dual-port venting system

👉 The Hybrid is one of the most balanced performance + sound upgrades available for FA20 Subaru platforms.

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🏆 Perfect For

• Subaru WRX street and performance builds
• Forester XT turbo upgrades
• Levorg FA20 tuning setups
• Drivers wanting sound without sacrificing drivability

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✅ Summary

The GFB HYBRID TMS Dual Outlet Blow-Off Valve for FA20 Subaru engines delivers improved boost control, reduced surge, and enhanced throttle response while maintaining the signature dual-port blow-off sound.