SKU: 39895444798

Bluetooth Flex Fuel Kit F Chassis BMW B38, B46, B48, B58 Engine

Sale price$311.40 Regular price$346.00
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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Description

Bluetooth Flex Fuel Kit F Chassis BMW B38, B46, B48, B58 EngineKnow 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

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:

  • Genuine Continental® ethanol sensor
  • One stainless steel braided fuel line with black nylon sheathing to protect your other engine bay components
  • Proprietary custom billet fitting for plug and play OEM integration
  • One custom wiring harness
  • One tube of SuperLube® for hose adapter install

Complete Kit with BMS CANbus ECA includes:

  • Our new CANflex LED ECA to display current ethanol content
  • Legacy 5V output for JB4 integration
  • Universal CANbus harness for use with future flash tuning integration
  • Download the free BMS CANflex apps here:

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

Complete Kit with Fuel-It! Bluetooth ECA includes:

  • Bluetooth ECA
  • PnP harness
  • Download the free Fuel-It! Bluetooth Apps here:

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

Replacement fuel lines are also available ala cart.

Compatible platforms for the B38, B46, B48, and B58 motors:

  • 1' F20 LCI   (05/2014+
  • 1' F21 LCI   (05/2014+
  • 2' F22   (06/2014+
  • 2' F22 LCI   (09/2016+
  • 2' F23   (06/2014+
  • 2' F23 LCI   (09/2016+
  • 3' F30 LCI   (09/2014+
  • 3' F31 LCI   (09/2014+
  • 3' F34 GT LCI   (09/2015+
  • 3' F35 LCI   (07/2015+
  • 4' F32   (04/2015+
  • 4' F32 LCI   (05/2016+
  • 4' F33   (03/2015+
  • 4' F33 LCI   (05/2016+
  • 4' F36 Gran Coupé   (05/2014+
  • 4' F36 Gran Coupé LCI   (05/2016+


*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.

 


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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 39895444798

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Paige
Port Orchard, US
★★★★★ 5
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Size: 6.5, Color: Black/Black
Absolutely love these boots! I originally bought them to wear in NYC in December & they did not disappoint. They were comfortable, cute, durable and worked well in the slush/snow. The traction on the bottom is also nice! They kept me warm with wool socks. I wear them almost daily now. Perfect for everyday. easy to wear with variety of outfits. Good every day shoe.
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Reviewed in the United States on January 3, 2026
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Kimberly
New York, US
★★★★★ 5
Snagged a deal
Size: 7, Color: Redwood/Gum 10
I waited and waited to get these boots! I knew I was chancing it, but they went on sale, and I snagged them! I am a size 7, and they fit nicely with socks. a little loose, barefooted, but what psycho wears boots without socks? They are comfortable and really well-made.
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Reviewed in the United States on April 8, 2026
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ashlynnk
Los Angeles, US
★★★★★ 4
Cute, comfortable waterproof boots (a little snug to put on)
Size: 7, Color: Velvet Tan/Gum 2
These are really cute Chelsea-style boots and feel very comfortable once they’re on. The waterproof material is great for wet weather and the sole feels sturdy with good traction. They look stylish enough to wear casually but still feel practical for rainy days. The only downside is they can be a little difficult to put on at first because the opening is somewhat snug, but once they’re on they fit well and feel supportive. Overall they’re a great waterproof boot and I’ve enjoyed wearing them.
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Reviewed in the United States on March 17, 2026
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Abby B
West Palm Beach, US
★★★★★ 5
Surprisingly great for my wide feet and high instep!
Size: 10.5, Color: Velvet Tan/Gum 2
So thrilled I took a chance on these. Finding boots is impossible for me. I have wide feet, a super high instep, a bunion on one foot, and I wear a hard to find size (10.5). I ordered the 10.5 and 11 in these expecting I might need to size up for width (if I could even get them on). It was a struggle getting the 10.5s on the first time, and once I did they were somewhat uncomfortable on the top of my left foot. But I read that they would relax so decided to give it a go because I need waterproof boots for an upcoming trip and the 11s felt too long. After two days of light wear, they are already breaking in and I have no more discomfort. Getting them on is already easier and they are plenty wide enough and very comfortable to walk in. These are true to size. Super happy and worth a day of mild discomfort to break them in!
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Reviewed in the United States on March 7, 2026
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EE
Carnegie, US
★★★★★ 5
Comfortable, sturdy, waterproof
Size: 9.5, Color: Black/Black
Loce, love, love these boots. Have walked ten miles with no foot pain around NYC. They go with everything and and are so comfortable. As they are waterproof/resistant, they get a little warm in high temps, but perfect three-season boots.
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Reviewed in the United States on May 17, 2026

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