BMW 135i & 335i Bluetooth Flex Fuel Kits for the E-Chassis N54 / N55 Motors

Stop Guessing. Start Knowing Your Exact Ethanol Content.

Running E85 on your turbocharged vehicle? Ethanol content at the E85 pump can vary from E50 to E85 or higher depending on season and station. Regular premium gas can have up to 10% ethanol at some stations. No more calculating gallons at the pump and guessing ethanol percentage. Just open the app and know.

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.

Key Features

Real-time ethanol content monitoring via Bluetooth
Displays exact ethanol percentage (E-content) in the Fuel-It! or JB4 app
05V analog output for JB4 or flash tuning integration
Genuine Continental ethanol sensor for OEM-grade accuracy
Plug and play fuel line integration
Ethanol safe PTFE fuel lines and fittings
Installs in approximately 30 minutes
No cutting or permanent modification required

Why You Need an Ethanol Sensor

E85 pumps rarely dispense true E85. Seasonal blends can drop into the E50 range without notice. If youre tuning for ethanol, this matters.

With this kit you can

Dial in your exact E85 blend every fill-up
Avoid running too much ethanol on a pump gas map
Maximize timing and boost safely on ethanol maps
Maintain consistent performance at the track
Protect your engine from unknown fuel mixtures

The Bottom Line

If youre running E85, a flex fuel sensor isnt optional, its essential.

Power, consistency, and safety all start with knowing exactly whats in your tank.

Vehicle Fitment

BMW 1 Series

• 2008-2010 N54 E82 BMW 135i Coupe
• 2008-2010 N54 E88 BMW 135i Convertible
• 2011 N54 E82 BMW 1M
• 2011-2013 N55 BMW E82 E88 135i LHD

BMW 3 Series

• 2006-2010 N54 E90 BMW 335i Sedan including xDrive
• 2006-2010 N54 E91 BMW 335i Touring including xDrive
• 2006-2010 N54 E92 BMW 335i Coupe including xDrive
• 2007-2010 N54 E93 BMW 335i Convertible
• 2011-2013 N54 E92 BMW 335is
• 2011 N55 BMW E90 E91 335i including xDrive
  
• 2011-2013 N55 BMW E92 E93 335i including xDrive

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