MACH 2 TMS (Silvia/200SX S14-15)

🔧 Product Description

The Mach 2 TMS Recirculating Diverter Valve from Go Fast Bits is a high-performance OEM replacement designed specifically for Nissan SR20DET turbocharged engines, including the Nissan Silvia S14 and Nissan Silvia S15 platforms.

Built around proven TMS (Turbo Management System) technology, the Mach 2 improves boost recovery, throttle response, and overall drivability while retaining full recirculating operation for OEM-like behaviour.

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⚙️ Key Features

• Direct OEM replacement diverter valve
• Designed for SR20DET turbo systems
• 100% recirculating (plumb-back) configuration
• Optional atmosphere conversion kit available
• CNC-machined aluminium construction
• TMS performance technology
• Bolt-on installation – no modifications required
• High boost holding capability (virtually unlimited)

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🏁 Performance Benefits

⚡ Faster Boost Recovery

The Mach 2 helps the turbo return to peak boost up to 30% faster than factory diverter valves during gear changes.

🚀 Improved Throttle Response

Factory valves are often designed with safety bias (partially open), which can slow response. The Mach 2 remains sealed under boost, improving engine immediacy.

🔒 Stronger Boost Retention

Eliminates boost leakage commonly found in aging OEM plastic or diaphragm valves.

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🔬 TMS Technology Explained

The Turbo Management System (TMS) ensures optimal valve behaviour:

• Valve stays closed under boost
• Opens instantly on throttle lift
• Maintains airflow stability during shifts

👉 Result: faster spool recovery, stronger mid-range torque feel, and improved consistency

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🔊 Venting Options

• Recirculating mode (standard):
  • Quiet OEM-style operation
  • Ideal for daily driving and tuned setups
• Atmosphere conversion (optional):
  • Aggressive blow-off sound
  • No stalling issues due to controlled design

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🚗 Vehicle Applications

• Nissan Silvia S14 (SR20DET)
• Nissan Silvia S15 (SR20DET)
• Nissan 200SX S14
• SR20DET-powered S14 / S15 variants (1993–2003)

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🔩 Specifications

• Product Type: Recirculating diverter valve
• Technology: TMS (Turbo Management System)
• Material: CNC-machined aluminium
• Configuration: 100% recirc (optional atmo conversion)
• Fitment: Direct bolt-on
• Brand: Go Fast Bits (GFB)

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🛠️ Installation Notes

• Direct replacement for OEM SR20DET diverter valve
• No tuning or modifications required
• Vacuum/boost line connects to factory setup
• Atmo conversion optional accessory kit

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💡 Why Choose the Mach 2?

If your goal is:

• Faster turbo response on SR20DET engines
• Reliable OEM+ upgrade over factory valve
• Optional sound without drivability issues

👉 The Mach 2 is one of the most effective bolt-on improvements for Nissan turbo platforms.

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🏆 Perfect For

• Nissan Silvia drift and street builds
• SR20DET performance upgrades
• Turbo response-focused tuning setups
• Drivers wanting OEM reliability with sharper performance