ESS 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.
Part number: 101-18
Horsepower: 225DIN (Stock 177)
Torque: 540NM (stock 400)
Installation is done through a ECU flash update.
Application intended for: BMW E60 E61 525d from 2004, 2005, 2006