Generating a ROM DUMP is a good way to test this
This is something that is easy for you to check
STG1 Tune 93/E85 Flex Fuel
It is a lower cost option for those that don't mind unplugging their adapter after use
Fastest flash times over ENET and CANBUS
BM3 BMW S55 TUNE BMW Generating a ROM DUMP isEcuTek BMW S55 Kagan Custom Tuning (F22 80 82 83 M2 M3 M4,) consist of these variations and more. Stock Fuel System, Port Injection Full E85 (Stock Fuel System Stock Turbo or Fuel System Upgrade Aftermarket Turbo) Pump Gasoline 91 Oct, 93 Oct, E30, E50 Race Fuel (ex. 100oct, MS109, C85, X85, Etc) Stock Turbo or Aftermarket Turbo Requires BM3 (Bootmod3) If running an Advanced Third Party PI Methanol FlexFuel controller such as the Motiv Reflex: