C63 AMG Blow-Off Valve (BOV) / VTA Adapters – M177 Turbo Sound Upgrade

C63 & C63S AMG • Vent-to-Atmosphere Adapter • No Tune Required

Commonly searched as a C63 blow-off valve (BOV), these vent-to-atmosphere (VTA) adapters convert the factory diverter valves on the Mercedes-AMG C63 and C63S into an open, atmospheric release system. Designed specifically for the M177 twin-turbo V8, this upgrade delivers aggressive turbo sound with bolt-on installation and no ECU tuning.

Instead of replacing the entire boost control system, these C63 AMG VTA adapters work with the factory electronic diverter valves, allowing boost pressure to vent to atmosphere on throttle lift — producing the distinctive BOV hiss and flutter enthusiasts expect.

🔧 Key Features

• C63 Blow-Off Valve Sound: Vent-to-atmosphere turbo release
• VTA Adapter Design: Converts factory diverter valves
• No Tune Required: Retains OEM electronic control
• No Check Engine Light: Designed for proper sensor operation
• CNC Aluminum Construction: Heat-resistant and boost-safe
• Bolt-On Install: No cutting, wiring, or ECU changes

💨 Sound & Driving Experience

• Sharp blow-off valve sound on throttle lift
• Noticeable turbo flutter and hiss between shifts
• More engaging turbo feedback without tuning complexity

If you’re searching for a C63 BOV, this VTA adapter kit delivers the sound you want without unnecessary tuning or hardware changes. A simple, reversible way to add blow-off valve sound to your AMG.