Mercedes AMG GT GTS GTR GTC ECU Tuning – M178 Optimized Performance

This isn’t a generic flash. Our M178 calibrations are developed in-house, optimized on the dyno, and tested on the street and track. Every map is custom-built around your fuel, hardware, and driving preferences to deliver maximum power with factory-level refinement and reliability.

• +120–150 whp with proper supporting mods
• +130–170 lb-ft torque increase
• Fuel maps available for 91, 93, and 100 octane
• Adjustable burbles, throttle response, and boost timing.
• Designed for consistent performance in all conditions

🔧 What's Included

• Custom M178 ECU calibration built around your fuel, hardware and driving preference
• MyGenius handheld programmer — required if you want to switch between multiple maps
• Additional maps available on request

Message us with your build and we will confirm exactly what your setup needs before you order.

🚘 Vehicle Compatibility

Compatible with all Mercedes-AMG M178 4.0L biturbo models:

• AMG GT
• AMG GTS
• AMG GTR
• AMG GTC
• AMG GT Black Series (base support)

🚚 How to Order

1. Contact us with your vehicle details and current modifications.
2. Select your tuning method:
   • 📦 OBDII Data Cable (ships to you)
   • 🚚 Mail-in ECU Service (fast turnaround)
   • 🏁 In-Person Tuning at our Southern California location
3. Enjoy your fully optimized M178 setup.