x20d 177 ESS E-Flash ECU Tuning Software Stage 1
ESS optimized N47 ECU software is a result of 100's of dyno runs and exact calibration of all parameters to allow maximum performance gains with improved drivability/fuel consumption and stock engine longevity.
Part number: 101-120
Horsepower: 205 DIN (Stock 177)
Installation is done through a ECU flash update.
When ordering this product you will receive 1 ESS E-Flash OBD2 programming system which will VIN lock to your car.
This system can be used to program between stock and tuned, and it can also be used to load custom files/race fuel files/updates received from ESS over email.
Correction factor for drivetrain loss is 15% above RWHP as seen in dyno graph (RWHP/0.85)
Application intended for: BMW E81 E82 E87 E88 E90 E91 E92 E93 120d 320d 177hp version from 2007 2008 2009