AMG GT Blow-Off Valve (BOV) / VTA Adapters – R190 M178 4.0L BiTurbo

Fits Mercedes-AMG GT, GTS, GTC & GTR (2015–2023)

Commonly searched as an AMG GT blow-off valve (BOV), these VTA (vent-to-atmosphere) adapters convert the factory electronic diverter valves on the Mercedes-AMG R190 platform into an open, atmospheric release system. The result is aggressive turbo sound and flutter without ECU tuning or check engine lights.

Designed specifically for the M178 4.0L twin-turbo V8, this upgrade delivers unmistakable blow-off valve sound while retaining factory electronic control and drivability.

Key Features

• AMG GT Blow-Off Valve Sound: Vent-to-atmosphere turbo release on throttle lift
• VTA Adapter Design: Converts factory diverter valves without replacement
• No Tune Required: Retains OEM ECU and solenoid operation
• No Check Engine Light: Engineered for proper sensor behavior
• CNC Aluminum Construction: Precision-machined for heat and boost durability

Installation & Compatibility

Fits all Mercedes-AMG GT, GTS, GTC, and GTR models equipped with the M178 4.0L BiTurbo engine (R190 chassis). Installation is fully bolt-on with no cutting, wiring, or ECU modification required.

Complementary Upgrades

⚠️ Sound-focused modification. No direct horsepower gains. Intended for enthusiasts seeking enhanced turbo sound and driving engagement. Always verify local regulations before installation.