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ESS F10 5-Series (F) E-Flash Stage 1 ECU Performance Software

SKU: ESS-101-103F


ESS N55 F series E-Flash Stage 1 ECU software is a result of extensive testing and exact calibration of ECU parameters to allow significant performance gains on a stock or lightly modified car (intake/exhaust/IC). The Stage 1 software is developed and tested in extreme heat in the Arizona desert as well as extreme cold temperatures in Scandinavia. Typical gains are in the 40-45whp range.

The E-Flash N55 software is a full OBD2 solution that does not require sending in the ECU or opening the ECU in any way.

Catless of HFC option is not available for customers in California.

  • Top Speed Governor: Removed
  • RPM Limit: 7100RPM
  • Fuel requirement: 91-93US/ 98Euro
  • Horsepower 2012: 360 DIN (Stock 306/320)
  • Horsepower 2013+: 400 DIN (Stock 306/320)
  • Torque: 500NM (Stock 400NM)

*Correction factor for drivetrain loss is 15% above RWHP as seen in dynograph (RWHP/0.85) Power rating is dependent on fuel quality.



BMW F10 5-Series 535i  2012 - 2016
BMW F12 6-Series 640i  2012 - 2016