This is a high-performance Stage 2 tuning file for the Mercedes-Benz C-Class 180CGI (W204), equipped with a Siemens/Continental SIM271 ECU. This calibration is designed for enthusiast vehicles that have been mechanically modified with a high-flow or decat downpipe to achieve the best possible performance from the 1.8L turbocharged engine.
This aggressive remap completely recalibrates the engine's operating parameters, including boost pressure, ignition timing, and fueling, to take full advantage of the improved exhaust flow. The result is a significant increase in horsepower and torque, transforming the C-Class into a much faster and more responsive vehicle with a thrilling, sporty character.