GFB Respons T9025 Diverter Valve (25mm inlet, 25mm outlet – suits Bosch replacement)

🔧 Product Description

With a 25mm inlet and outlet, this valve is ideal for a wide range of turbocharged vehicles, offering the flexibility to run fully recirculated, fully atmospheric, or a balanced hybrid setup without the common issues of stalling or backfiring.

⚙️ Key Features

• Direct-fit replacement for Bosch diverter valves
• 25mm inlet / 25mm outlet configuration
• Dual-port design (recirculation + atmosphere)
• Patented TMS (Turbo Management System)
• Adjustable venting bias (silent → loud)
• CNC-machined aluminium construction
• High boost holding capability
• No springs or rebuilds required
• Retains OEM ECU and solenoid control

🔊 Venting Options

Recirculating Mode (OEM Style):

• Quiet operation
• Perfect for daily driving & MAF systems
• Maintains factory drivability

Atmosphere Mode:

• Aggressive blow-off sound
• Fully adjustable via venting bias control

🏁 Performance Benefits

• Faster boost recovery between gear changes
• Improved throttle response
• Reduced turbo lag
• Stable operation with no stalling or backfiring
• Maintains consistent air-fuel ratios

🚗 Fitment & Application

• Audi 8L / B5 / B6 / TT 1.8T
• VW Golf GTI Mk4, Bora / Jetta Mk4, Passat B5 1.8T
• SEAT Leon Cupra Mk1 1.8T
• Skoda Octavia Mk1 1.8T
• Ford Territory Turbo (selected models)
• Saab 9-3 / 9-5 Turbo (selected variants)
• Mazda MX-5 Turbo (BP-Z3)

🛠️ Installation Notes

• Direct bolt-on replacement for factory Bosch diverter valve
• No ECU tuning required
• Retains factory solenoid and vacuum routing
• Suitable for stock and modified turbo setups

🔩 Specifications

• Product Type: Dual-Port Diverter Valve
• Model: T9025
• Inlet/Outlet: 25mm
• Material: CNC-machined aluminium
• Technology: TMS (Turbo Management System)
• Adjustment: Mechanical venting bias

💡 Why Choose the GFB Respons T9025?

• OEM reliability with real performance gains
• Fully adjustable sound and response
• Eliminates issues common with atmospheric BOVs
• Quick, simple bolt-on upgrade
• One of the most versatile diverter valves in the GFB range