Fuel-It BMW S55 F80 M3 and F82/F83 M4 Flex Fuel Kit - Part Number: F-S55-FFK
Run E85 or ethanol blends on your BMW S55 with confidence. The Fuel-It Flex Fuel Kit for the BMW F80 M3 and F82/F83 M4 is a complete plug and play solution that replaces the stock fuel lines from the tank to the engine bay with a high-flow, E85 compatible -6AN line, adds an ethanol content sensor, and includes a Bluetooth analyzer for real-time ethanol content monitoring. It is the proven, tidy way to support flex fuel tuning on the S55 platform.
At Nforcd we have installed and used this kit on our own S55 projects, and our customers love how clean, reliable and easy it is to live with. If you are searching for a BMW M3 M4 flex fuel kit, E85 conversion kit, ethanol sensor kit or a Bluetooth ethanol content analyzer for the S55, this Fuel-It package is the one to buy.
Why choose this Fuel-It Flex Fuel Kit
- Designed for BMW S55 engines in F80 M3 and F82/F83 M4
- Complete plug and play installation with no permanent modifications
- Upgraded continuous -6AN E85 compatible fuel line for high flow from tank to engine bay
- Integrated ethanol content sensor for accurate blend monitoring
- Bluetooth analyzer for live ethanol data on your smartphone
- Custom billet aluminium fittings interface neatly with factory fittings
- Supports stock HPFP setups and port injection configurations
Analyzer options
Check with your tuner to confirm the output you require:
- Bluetooth only
- Bluetooth with JB4 integrated 0 to 5 volt output
- Bluetooth with 50 to 150 Hz raw signal output
Bluetooth functionality requires a compatible iPhone or Android app.
Choose your fuel line configuration
- HPFP to fuel tank (stock setup): Replaces both stock fuel lines with one upgraded continuous line from the tank to the HPFP and adds the ethanol sensor.
- Fuel-It port injection to fuel tank: Replaces the stock lines from the tank to the engine bay, integrates the ethanol sensor and uses a Y-adapter to feed both the HPFP and Fuel-It PI rail. Custom fittings remove tees and extra joins for a cleaner, higher-flow layout.
- Non-Fuel-It port injection to fuel tank: Includes a longer 18 inch feed line from the Y to the PI rail. Cut to length and use the supplied -6AN female fitting or -6AN female elbow to connect to your PI rail.
Compatibility
- BMW F80 M3 2014+
- BMW F82/F83 M4 2014+
Part number
F-S55-FFK
Manufactured by
Fuel-It
Warranty
Fuel-It Limited Warranty
Fitting and support
Professional installation is recommended. Nforcd offers expert fitting in Warwickshire and we are happy to help with configuration selection. Request a fitting quote via Sales@nforcd.com. Before dispatch we run a compatibility check for your specific car using your UK registration or the last 7 digits of your VIN. Simply provide your details at checkout.
Important notes
- For off-road use only
- Ethanol sensors infer ethanol content by measuring the absence of petrol. Contaminated fuel can cause artificially elevated readings
Search-friendly terms
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