Mercedes-AMG C63 (W205) ECU Tune

Custom OEM-ECU calibration for the Mercedes-AMG C63 (W205). Factory output is 469 hp and 479 lb-ft; Stage 1 takes it to 617 hp and 637 lb-ft — a gain of 148 hp and 158 lb-ft — with no hardware changes required. Stage 1 — 617 hp / 637 lb-ft. Stock exhaust, stock intake. Nothing to buy. Stage 2 — 637 hp / 657 lb-ft. With downpipes or a sports exhaust fitted. Remote — your car never leaves your garage. We ship you the tuning tool, you plug it into the OBD port, and we flash the calibration by email. The ECU is never removed.Every file is built and signed off individually against your own datalog, not pulled from a shelf. One free revision for 30 days — change your exhaust or your fuel and we update the calibration at no charge. Emissions equipment is not touched.ECU: Bosch MED17.7.5 (TC1793).Figures are estimates at the crank for a healthy car on good fuel. Real-world results vary with vehicle condition, fuel quality, dyno type and ambient conditions.