Blow-Off Valve Adapters for AMG GT / GTS / GTC / GTR (R190)

Fits all M178 4.0L BiTurbo models (2015–2023)

Unleash the turbo sound your AMG GT was born to make. These VTA (Vent-to-Atmosphere) adapters convert your factory diverter valves into aggressive-sounding blow-off valves — without triggering a check engine light or requiring a tune.

Key Benefits:

• Aggressive Turbo Sound: Hear every shift, lift, and throttle close with that signature blow-off hiss.
• No Tune Required: Designed to integrate with factory ECU mapping — just bolt on and go.
• No CEL: Engineered to avoid check engine light errors or sensor issues.
• Reduced Intake Temps: Prevents hot recirculated air from cycling back into the intake.
• Precision Machined: CNC-cut from aerospace-grade 6-series aluminum for long-term reliability.

Installation & Compatibility

This kit fits all Mercedes-AMG GT / GTS / GTC / GTR models with the M178 engine. Installation is straightforward — no cutting, splicing, or modification required. Hardware is included.

Complementary Upgrades

⚠️ For off-road use only where permitted. Blow-off valve adapters are intended for enthusiasts seeking added sound and personalization. Power gains are indirect and depend on overall setup.