VTA Blow Off Valve Adapters for Mercedes-AMG M177 / M178 (All Models Except C-Class)

Bring back the aggressive turbo sound your AMG deserves with these high-performance VTA (Vent-To-Atmosphere) Blow Off Valve Adapters, engineered for Mercedes-AMG vehicles equipped with the M177 and M178 twin-turbo engines. These adapters convert the factory diverter valves into true blow-off valves, allowing pressurized air to vent to atmosphere instead of recirculating back into the intake.

From the factory, Mercedes routes excess boost air back into the intake system for noise reduction and emissions control. These VTA adapters change that behavior—producing a sharp, unmistakable blow-off sound while reducing heat reversion and improving throttle response, all without compromising drivability or ECU operation.

Vehicle Compatibility

• Mercedes-AMG M177 Engines – All models (excluding C-Class)
• Mercedes-AMG M178 Engines – All models

Performance & Sound Benefits

• Converts factory diverter valves to blow-off valves
• Vents hot compressed air to atmosphere instead of recirculating
• Produces aggressive turbo blow-off sound on throttle lift
• Reduces intake air temperatures by eliminating heat re-entry
• Improves throttle response during shifts
• No impact on ECU calibration

Engineered for Reliability

• No ECU tuning required
• No Check Engine Light (CEL)
• Fully compatible with stock turbo systems
• Safe for daily driving and spirited use

Construction & Design

• CNC-machined 6000-series aluminum for strength and durability
• Precision-machined sealing surfaces
• Corrosion-resistant finish for long-term use
• Designed as a cost-effective alternative to overpriced spacer kits

Installation Information

• Direct bolt-on installation
• No cutting, wiring, or permanent modifications
• Uses factory mounting points
• Can be installed with basic hand tools

These VTA adapters deliver the sound, response, and performance AMG owners want—without paying premium prices for unnecessary complexity. Designed with efficiency in mind, they provide the same function as expensive multi-axis spacers at a fraction of the cost.

Unleash the sound of your AMG. Sharper shifts, cooler intake temps, and pure turbo character—without tuning or warning lights.

Mercedes-AMG M177 & M178 Engine Compatibility Chart