Mercedes E400 Tune — Stage 1

AMR Performance develops Mercedes E400 software as 2 separate files, not one calibration reused across a range. Every file here is ECU calibrations. Installation is wireless via comport ipro (obd). These cover the E-Class (W212) chassis, each written for that car's engine and gearbox combination. All current files are built for 93 Octane / 91/93 Octane pump fuel — no race fuel and no hardware changes required. Every calibration listed here ships as a Stage 1 tune; the power figures for each are on its own product page.