Performance Calibration: Mercedes-AMG C43 (W205 Facelift)
Engine: M276 3.0L V6 Biturbo | Model Years: 2018.5–2021
The facelifted C43 AMG features an evolved M276 engine equipped with larger turbochargers and higher factory boost levels compared to the pre-facelift models. Our calibrations take full advantage of this hardware, pushing the V6 biturbo platform into a different league of performance while preserving the 31:69 rear-biased 4MATIC delivery.
🏁 Stock Baseline (Facelift)
Standard Power: 385 HP (390 PS)
Standard Torque: 384 LB-FT (520 Nm)
Turbochargers: Enhanced factory units with increased charge pressure.
🚀 Performance Calibration Options
| Feature | Stage 1 Calibration | Stage 2 Calibration |
| Power Output | 440–450 HP | 485–500 HP |
| Peak Torque | 480 LB-FT (650 Nm) | 515+ LB-FT (700+ Nm) |
| Requirements | Stock Hardware | Downpipes & High-Flow Intake |
| Installation | Powergate 4 / OBD | Powergate 4 / OBD |
| V-Max Limiter | Removed | Removed |
🛠️ Why Calibrate Your Facelift C43?
Unlock the "S-Class" Potential: The facelift M276 has more headroom than its predecessor. Our Stage 1 alone provides a massive jump in mid-range torque, significantly reducing 0–60 mph times.
Transmission Calibration: We optimize torque reporting to the 9G-TRONIC transmission, ensuring the 9-speed automatic manages the extra 100+ LB-FT of torque with crisp, precise shifts.
Thermal Management: Our software monitors the M276’s air-to-water intercooling system, adjusting timing and boost to ensure consistent performance even during back-to-back pulls.
Drive-ability: Comfort mode remains refined for daily commuting, while Sport+ becomes more aggressive with sharpened throttle mapping and optimized exhaust valve logic.
⚡ Critical Tuning Note: The CPC Module
For 2019+ Facelift models, Mercedes introduced a CPC (Central Powertrain Controller). While our ECU tune will provide immediate gains, the CPC module often contains secondary torque limiters that can "throttle" the engine in lower gears.
Level 1 Tuning: Generally works within CPC limits for a significant boost.
Level 2 Tuning: To realize the full 515+ LB-FT of torque, a CPC bypass or re-calibration is highly recommended to prevent the car from artificially cutting power.
🔧 Recommended Maintenance
Spark Plugs: For Stage 2, we recommend one-step colder plugs gapped to 0.022".
Fuel Grade: 93 Octane (98 RON) is required for the advertised HP targets.
Air Filters: Upgrading to high-flow drop-in filters is the best "bang-for-your-buck" hardware add-on for Stage 1.
This Calibration File Fits:
2018 (Facelift) – 2021 Mercedes-Benz AMG C43 (W205)
Includes Sedan, Coupe, and Cabriolet models.
mercedes benz c43 amg M276 Performance Calibration (2018+)
All Performance Calibration features can be adjusted specifically to your liking and driving style!
- Tailored Performance to Highway, Track, City
- Pops and Bangs
- Fuel Type
- Optimized boost, fuel, spark, timing values
- Top Speed Limiter Removal
- More Responsive Throttle Control
- Better towing performance
- All OBD Monitors Function as Stock
Software installation is included in this purchase.
Performance Calibration your car with ECUPROGRAM is one of the easiest yet most effective mods you can do! All tunes are made in house suited to your needs.
1. After purchase, a team member will contact you to discuss the details of your car, allowing us to code a file tailored to your vehicle.
2. This file can then easily be installed though a purchased or rented ecu flasher. You can do this on your own or call us and we'll help!
Alternatively you can book an appointment or mail in your ECU and we'll do all the install in-house.
