Mercedes S500/S550 W222 M278 ECU Tune
Mercedes S500/S550 W222 M278 ECU Tune
Expertly calibrated with Xstages Motorsport Tuning Software custom made for your specific application. Each file is developed through intensive dyno sessions and extensive street testing across multiple test vehicles to achieve the safest and most optimized power gains available on the market.
MUST PROVIDE VIN NUMBER IN NOTE SECTION OF CHECKOUT WHEN ORDERING
Our goal is not just peak numbers but smooth, reliable power throughout the entire rev range. The result is stronger acceleration, improved drivability, and a completely transformed driving experience that inspires confidence every time you press the throttle.
Our calibrations are a complete performance package optimized for 91–94 octane
Performance Benefits:
- Increased Horsepower
- Optimized Torque Limiters
- Enhanced Throttle Response
- Improved Fuel Efficiency (under normal driving)
- Optional Pops & Bangs (Crackles)
- Speed Limit Removal
- Optional Flame Map
Stage Options:
Stage 1 Tune:
Perfect for stock vehicles with no modifications required.
- Safe on completely factory hardware
- Significant power and torque increase
- Smooth daily drivability
Stage 2 Tune:
For drivers wanting maximum performance and aggressive output.
Required Modification:
- Aftermarket downpipes
Recommended Supporting Mods:
- Performance Intake
- Upgraded heat exchanger (these vehicles generate significant heat)
- Cat-back exhaust system
With increased performance comes increased responsibility. To maintain reliability:
- Inspect & replace spark plugs every 10,000–15,000 km
- Inspect coil packs regularly
- Engine oil change every 4,000–5,000 km
- Upgrade to high-performance engine oil to support increased load
Proper maintenance ensures longevity and consistent performance.
THESE CALIBRATIONS ARE FOR OFF-ROAD USE ONLY AND ARE NOT LEGAL FOR STREET USE.
It is the customer’s responsibility to ensure compliance with local laws and regulations.