Shopping security
Know your exact ethanol content in real-time with our new LED display or by using the BMS CANflex, Fuel-It! or JB4 mobile app on your smartphone or tablet.

If you're running E85 or ethanol mixes in your B58, B48, B46, or B38 equipped BMW, you need this kit!
As many of you know the BMW motors can be 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-in 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.
All of our complete kits include the following:
Complete Kit with BMS CANbus ECA includes:
Download the free BMS CANflex apps here:
Complete Kit with Fuel-It! Bluetooth ECA includes:
Download the free Fuel-It! Bluetooth Apps here:

Replacement fuel lines are also available ala cart.
*For the JB4 platform connect the white or blue wire to position #4 on the JB4 25 pin harness. Select WMI Ethanol Setup option 0 to enable pin location 2/3/4 flex fuel input.
*Free shipping in USA on complete kits only.


Ships within 48 hours · Estimated delivery Jun 21 - Jun 26
US$40
Get nowSign up to your membership to get coupons up to
15%
Get nowOpportunity to enjoy order discount up to 15% off
Top-Converting Item to Boost Your Average Order