CANbus Bluetooth Flex Fuel Kit for S58 BMW M2, M3, M4, X3M & X4M Select Kit:Complete Kit with Legacy Fuel-IT! Bluetooth/5V only ECA If you are using an

If you are using an Apple product the app can be found by clicking here

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CANbus Bluetooth Flex Fuel Kit for S58 BMW M2, M3, M4, X3M & X4M Select Kit:Complete Kit with Legacy Fuel-IT! Bluetooth/5V only ECA If you are using anIf you're running E85 and or plan to run port injection in your hi power S58, you need this kit! Our new Plug & Play Hi Flow Canbus Integrated Flex Fuel Kit offers a few new features: In addition to knowing your exact ethanol content in real time via the JB4 mobile app, the ethanol content is also sent to the ECU for those of you running a flex fuel flash from MHD, ECUtek, BM3, and others. Note: If you are running BM3, your harness will require a