🔧 Product Description
The GFB Deceptor Pro-II T9512 Diverter / Blow Off Valve (Twin Valve Kit) is a premium electronic blow-off valve system designed specifically for Kia Stinger applications, delivering full control over both performance and sound from inside the cabin.
Combining GFB’s patented Venting Bias Adjustment System with an in-cabin electronic controller, the Deceptor Pro-II allows drivers to adjust blow-off volume in real time — from silent OEM-style operation to full atmospheric venting.
Built on over 20 years of turbocharging and boost control expertise, the Deceptor Pro-II delivers not only adjustable sound, but also genuine performance improvements including faster throttle response and improved boost recovery.
⚙️ Key Features
- Twin valve kit design for high-flow turbo applications
- In-cabin electronic venting bias/volume control
- Adjustable sound output (silent → loud atmospheric venting)
- Patented Venting Bias Adjustment System
- High-torque geared electric motor for precise valve control
- Compact design for direct-fit installation
- Precision sealed ball-bearing supported gear train
- Full kit supplied with wiring, controller, and hardware
- Designed for long-term durability with premium internal construction
🏁 Performance Benefits
⚡ Adjustable Sound on Demand
Change blow-off sound instantly from inside the cabin using a backlit control dial.
🚀 Improved Throttle Response
Faster valve actuation improves boost recovery and drivability.
🔒 Strong Boost Holding Capability
Maintains stable boost under load and high-performance conditions.
🎯 Dual Performance + Sound Control
Unlike standard BOVs, this system provides both performance gains and full sound customisation.
🔬 Technology Overview
The Deceptor Pro-II integrates GFB Venting Bias Technology, allowing precise control over how much air is:
- Recirculated back into the intake system
- Venting to atmosphere for sound
The addition of an electric actuator system enables real-time adjustment from within the cabin, giving complete control over driving character without mechanical changes.
👉 Result: OEM drivability when quiet, aggressive sound when desired, and consistent boost performance throughout.
🚗 Vehicle Applications
Designed specifically for:
- Kia Stinger 3.3T-GDI (2017–on)
Twin-valve configuration ensures optimal performance for high-output twin-turbo setups.
🔩 Specifications
- Product Type: Electronic Twin-Valve Diverter / Blow-Off Valve Kit
- Model: GFB Deceptor Pro-II T9512
- Control System: In-cabin electronic venting bias adjustment
- Valve Design: Dual-port high-flow configuration
- Compatibility: Kia Stinger twin-turbo platforms
- Fitment: Direct bolt-on kit (no fabrication required)
🛠️ Installation Notes
- Direct bolt-on installation for Kia Stinger applications
- Includes full wiring harness and in-cabin controller
- No ECU tuning required for installation
- Compatible with both stock and tuned vehicles
- Atmospheric venting available due to non-MAF airflow design
💡 Why Choose the Deceptor Pro-II T9512?
If you want:
- Full in-cabin control of BOV sound
- OEM drivability with performance gains
- Aggressive turbo sound on demand
- Fast, responsive boost recovery
- A premium electronic upgrade over standard valves
👉 The Deceptor Pro-II T9512 delivers maximum flexibility: performance when you need it, sound when you want it.
🏆 Perfect For
- Kia Stinger performance builds
- Twin-turbo street setups
- Enthusiasts wanting adjustable turbo sound
- Daily-driven performance cars
- OEM+ upgrade paths with added character
