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  • Image 1
  • Port Injection to fuel tank with ethanol sensor and analyzer
  • Ethanol Analyzer Apps
  • Stock fuel line to from tank to engine bay
  • Stock fuel line in engine bay

E-Series Flex Fuel Kits

Calculated at checkout

Product Description

If you are running E85 or ethanol mixes in your BMW, you need this kit!

This is a complete plug and play kit to install a Bluetooth ethanol sensor in your E-Series BMW.

This kit replaces the stock fuel lines from the fuel tank to the engine bay with an upgrade -6an E85 compatible fuel line and adds an ethanol sensor and Bluetooth analyzer to monitor your ethanol content.

In addition, we offer the analyzers in two different models:  (Check with your tuning company to verify which option you need)

  • A 0-5 volt analog output that integrates with the JB4, analog gauge, or any other ECU or tuner that supprts 0-5 volt input.
  • A 50-150hz raw signal straight from the ethanol sensor to support those tuners that utilize that signal.
    • To utilize the Bluetooth feature all of our analyzer have you must purchase our Bluetooth app for iPhone or Android.

For your fuel line upgrade, choose the option that supports your current configuration.

  • HPFP to the fuel tank: (Stock)
    • This upgrade replaces both stock fuel lines with one upgraded continuous fuel line from the fuel tank to the HPFP and adds the ethanol sensor.
  • Port Injection to the fuel tank:
    • If you are running our port injection kit, this upgrade replaces the stock fuel lines from the tank to the engine bay, integrates the ethanol sensor and then utilizes a Y adapter to supply the HPFP and PI with fuel.  Our custom fittings remove those tee's and extra fittings for a cleaner high flow setup.
  • Non-Fuel-It! port injection to fuel tank:
    • Choose this option if you are running a port injection kit that we did not manufacture.  This kit includes a longer 18" feedline from the Y to the port injection rail.  You then cut the feed line to the length you need and install the included -6an female fitting or -6an female elbow to make the connection to your port injection rail.

All of our kits utilize our custom billet aluminum fittings to integrate with the stock fittings so no modifications are needed.

*These kits are available for off-road use only

*Ethanol Sensors don't actually read the ethanol content, the readings are based on the absence of gasoline, so if your fuel is contaminated your ethanol readings may be artificially elevated.


Product Videos

How to install our Cam-Lock! style fitting. (01:26)
A brief video to describe the features and installation of our new 5/16" quick connect female fuel line fitting for the stock hardline to the HPFP on the BMW N54, N55, and S55 motors. For questions or to inquire about any of our fueling products, please visit us at www.fuel-it.com or email us at info@fuel-it.com Thanks for watching, Fuel-It! Follow us on instagram @ https://www.instagram.com/_fuel_it_/ Like us on Facebook @ https://www.facebook.com/fuelit.biz/
  • How to install our Cam-Lock! style fitting.
    A brief video to describe the features and installation of our...

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