Custom ECU Tune for Mercedes M276 3.0L V6 Bi-Turbo – C43 AMG, C450, E43, GLC43

Our custom ECU calibration for the Mercedes M276 V6 BiTurbo improves power delivery and mid-range torque while retaining OEM safety logic. Real-world performance — not peak dyno numbers.

🎥 Real-World Performance

Real-world acceleration showcasing torque delivery and mid-range strength on a tuned M276 setup.

💡 Why Tune the M276?

• Improved torque onset and boost response through refined load and wastegate control
• More consistent mid-range output under sustained acceleration
• Refined throttle mapping for smooth daily driving and sharper response on demand
• OEM safety strategies retained including knock, thermal, and torque monitoring
• Built for longevity with conservative margins for fuel quality and heat management

🎥 Hear the Difference

C43 equipped with AMG Performance exhaust, catless downpipes, and our ECU calibration. Burble features shown are optional.

🔧 How the Process Works

1. Complete your purchase.
2. We send the required data cable and instructions.
3. You read your stock ECU file and email it to us.
4. Your custom calibration is built and emailed back for flashing.

Tuning support is available if revisions are needed or your setup changes.

🔩 Optional Supporting Mods

No supporting modifications are required. However, the following upgrades significantly improve airflow efficiency, boost control, and consistency when paired with tuning — especially under sustained load.