E53 Tuning — Stage 1

AMR Performance develops E53 software as 3 separate files, not one calibration reused across a range. Installation is ecu ship-in -or- dealer flash or comport pro -or- dealer flash. These cover the E-Class (W213) chassis, each written for that car's engine and gearbox combination. The list includes ECU calibrations, transmission (TCU) software and CPC tuning, which can be run individually or together. All current files are built for 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.