The ESS X5M/X6M E-Flash Performance ECU software is a result of extensive testing and exact calibration of ECU parameters to allow considerable performance gains on an otherwise stock car. The ESS S63 performance software is developed and tested in extreme heat in the Arizona desert as well as extreme cold temperatures in Scandinavia. Typical peak gains are in the 60 whp range. ESS E-Flash also includes full engine diagnostic functionality and code clearing capabilities.
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.
Part number: 101-100
Top Speed Governor: Removed
RPM Limit: 7000RPM
Fuel requirement: 91US/95Euro
Horsepower (peak): 600 DIN (Stock 555)
Torque: 790NM (Stock 680NM)
*Correction factor for drivetrain loss is 15% above RWHP as seen in dynograph (RWHP/0.85)
Application intended for: All X5M, X6M.
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I installed the ESS E-Flash Tune on my wife's E70 X5M and absolutely love it! Mid-Range torque is even better then before and the shifts are even quicker now! Highly recommend this product anyone looking to up the power while maintaining factory drivability. Car feels just like stock but with an extra 50HP :)