ESS E46 3-Series "ZHP" E-Flash ECU Tuning Software
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 Normal Aspiration 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.
RPM limit is increased to 7000RPM, and top speed governor is removed.
Throttle response programming is greatly improved over stock.
Power is increased by 4HP and 3lbs/ft of torque when programmed for premium fuel (91US/96Euro).
Special programming for custom setups are available on request.