ESS E-Flash is a software solution for BMW MSS65 ECUs which is designed to offer increased performance for both stock and modified cars. Through the E-Flash system, users can select between tuned and stock software versions.
ESS E-Flash MSS65 ECU software is a result of extensive testing and exact calibration of ECU parameters to allow increased performance on either a stock car or in combination with other modifications. The ESS MSS65 S85 software is developed and tested in extreme heat in the Arizona desert as well as extreme cold temperatures in Scandinavia. The end user can select between tuned and stock software versions simply using the E-Flash system to load whatever version is required.
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