CANflex Flex Fuel Kit for 2025+ Ram 1500 3.0L Hurricane
Running E85 or ethanol blends? Know your exact ethanol content in real time — the cleanest way to add flex fuel capability to your Hurricane.
Fitment — 2025+ Ram 1500 3.0L Hurricane only (SO & HO). Fits Warlock, Laramie, Rebel, Big Horn and Lone Star (Standard Output) plus RHO, Limited and Tungsten (High Output). Does not fit the 5.7L HEMI V8. Note: this kit cannot be shipped to California (CARB).
Know Your Ethanol Content, Live
This complete flex fuel kit — also called an ethanol sensor kit, E85 sensor or flex fuel composition sensor — reads the ethanol percentage in your fuel in real time and shows it on your phone through the free BMS CANflex app or the JB4 PRO app.
The CANflex ECA works as an ethanol content analyzer, E85 analyzer and Bluetooth flex fuel analyzer in one compact unit, reading your mixture with a genuine Continental® ethanol sensor and sending the data out over CANbus, Bluetooth, a built-in LED display and a 5V output for legacy systems.
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Installs in About 30 Minutes
The sensor tees into the fuel line using the included custom 180° billet fittings (the HO kit adds steel braided hoses and the Fuel-It! fuel line removal tool), then the 4' extension harness ties it to the CANflex ECA. No tune is required just to read ethanol content.
Wiring it to a JB4? Connect the blue wire to position #4 on the JB4 25-pin harness and select WMI Ethanol Setup option 0 in the JB4 app.
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Choose Your Kit — SO or HO
SO — Standard Output Kit
- Genuine Continental® ethanol sensor
- BMS CANflex ECA
- Custom 180° billet fittings
- 4' extension harness
- BMS CANflex Bluetooth app
- CAN LED silicone cover
- Tube of Super Lube®
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HO — High Output Kit
- Genuine Continental® ethanol sensor
- BMS Bluetooth CANflex ECA with LCD display
- Custom billet fittings and steel braided hoses
- 3/8" custom 180° billet fitting
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Fuel pressure sensor — read live in the app
- 4' custom extension harness
- Fuel-It! fuel line removal tool
- BMS CANflex Bluetooth app
- CAN LED silicone cover
- Tube of Super Lube®
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One Sensor, Four Ways to Read It
The CANflex ECA doesn't just show you a number — it feeds your ethanol content wherever you need it:
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CANbus for ECU tuning
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Built-in LED display showing your ethanol mix at a glance
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Free iOS & Android app (CANflex or JB4 PRO)
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5V output for a JB4 or legacy systems
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Made to Pair With the JB4
Seamless JB4 integration means real-time ethanol content monitoring right alongside your boost, timing and fueling data — so your E85 blend and your tune always agree. It's plug-and-play CAN integration with no guesswork or manual tuning, built for Ram 1500 owners who want more power without compromises.
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This Part Fits
| SO — Standard Output |
2025+ Ram 1500 Warlock, Laramie, Rebel, Big Horn, Lone Star — 3.0L I6 Hurricane Twin Turbo |
| HO — High Output |
2025+ Ram 1500 RHO, Limited, Tungsten — 3.0L I6 Hurricane Twin Turbo |
| Not compatible |
5.7L HEMI V8 Ram 1500 |
Complete the Build
Cancellation / Return Notice: This product may be submitted directly to the manufacturer for fulfillment shortly after purchase. Once submitted, the order is final and may no longer be eligible for cancellation or return.
FAQ
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What does a flex fuel kit do?
It measures the ethanol percentage in your fuel in real time, so you always know whether you're running pump gas, E85 or a blend in between.
Which kit do I need — SO or HO?
Match your engine: Warlock, Laramie, Rebel, Big Horn and Lone Star are Standard Output; RHO, Limited and Tungsten are High Output.
Do I need a JB4 to use it?
No. The kit works on its own with the free CANflex app, LED display and CANbus output. It also integrates seamlessly with the JB4 for live ethanol content.
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How long does it take to install?
About 30 minutes. Custom billet fittings and an extension harness are included.
How do I wire it to a JB4?
Connect the blue wire to position #4 on the JB4 25-pin harness, then select WMI Ethanol Setup option 0 in the app.
What does the HO kit add?
A fuel pressure sensor you can read live in the CANflex app, plus steel braided hoses and a fuel line removal tool.
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