Flex Fuel Kits for BMW F Chassis B38, B46, B48, B58 Motors

Know your exact ethanol content in real-time via the Fuel-It! or JB4 app on your smartphone or tablet! If you're running E85 or ethanol mixes in your BMW, you need this kit! As many of you know the B58 motor is very picky about how much ethanol you run to achieve peak performance but not run lean.  Consequently, we have put together a kit enabling you to easily install an ethanol sensor with no permanent modifications needed.  You will simply remove your low pressure fuel line in the engine bay and plug in our kit.  It's a complete plug and play solution that utilizes our Bluetooth app to monitor your ethanol content.  When you are ready to return to stock, you will simply remove the kit and re-install the stock fuel line.  Complete Kit includes: Two E85 compatible fuel lines Ethanol Sensor Bluetooth Analyzer Includes both Bluetooth App & 5v analog output for JB4 or flash tuning Bluetooth (iPhone or Android app must be downloaded to use this feature) If you are u