The ESS E-Flash OBD2 programming system allows the end user to upload the ECU tuning software directly to the car from any PC running Windows XP or newer. The system also includes full diagnostic and code clearing capability. Any future ESS software updates can be received by email and loaded directly to the car. The stock ECU software will be saved and can easily be restored in the future.ESS S54 NA optimized ECU software is a result of 100's of dyno runs and exact calibration of all parameters to allow maximum performance gains with improved driveability/fuel consumption and stock engine longevity. Removed top speed governor is included, and you have the option of stock RPM limit or up to 8800RPM, default setting from ESS is 8200RPM unless otherwise instructed.Power is increased by 10-15 HP when programmed for premium fuel (91US/96Euro).Throttle response programming is improved over stock. EWS system delete available for S54 integration in other cars.Vehicles SupportedBMW E46 M3
