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  • BMW_B58_Flash_Tune_Stg2 BMW_B58_Flash_Tune_Stg2
  • BMW_B58_Flash_Tune_Stg1.5 BMW_B58_Flash_Tune_Stg1.5

BMW B58 340i / 540i / X3 M40i Performance OBD Flash Tuning

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We are proud to announce an early release of performance flash tune for all B58 powered platforms. Our reflash was designed and meticulously perfected by in-house experts and delivers impressive gains with minimal expenses. Extensive improvements were performed to the software in order to provide significantly improved performance, great efficiency and unparalleled reliability.

-Flashable over OBD2 port with no need of DME removal.

-DME Tampering Shadow code disable

-Optimized Boost Control

-Optional 3.5Bar MAP sensor package for Built Motors

-Optimized Valve Lift and Timing Control

-Extensively modified knock control to ensure reliability and safety

-Cold start and VMAX delete (Optional) 


and much more


*M-Boot:  M-Boot was developed by Mission Performance as an additional solution for all of our customers that either want to upgrade performance stage or "temporary" go back to stock for a dealer visit. Since M-Boot is a custom written bootloader, there is no additional chip/hardware needed to be added to the ECU. In addition of having the ability of  reflashing the computer without sending it into our offices, M-Boot offers great features as Flash-Counter freezing and Calibration ID spoofing. 


Additional Information

freeobd Yes
Stock Stage 1 Stage 2
Horsepower 320hp 445hp 470hp 
Torque  330lb-ft 440lb-ft 460lb-ft
Sport Gauges 400hp/400lb-ft 400hp/400lb-ft 480hp/480lb-ft
Speed Limit Delete  None Yes Yes