AUDI S4 Bluetooth Flex Fuel Kit for the B8 & B8.5

If you're running E85 or ethanol mixes in your Audi S4, you need this kit!

Know your exact ethanol content in real-time via the Fuel-it! or JB4 app on your smartphone or tablet.

This is a complete plug and play kit to install a Bluetooth ethanol sensor in your Audi S4 in about 30 minutes. (Check compatibility for your platform below)

The kit includes the following:

• New 5/16" E85 compatible fuel lines for your engine bay
• Genuine Continental ethanol sensor
• Fuel-It! Bluetooth analyzer
• 5/16" quick connect fitting
• Oetiker crimp clamps to secure your new fuel lines

• Includes both Bluetooth App & 5v analog output for JB4 or flash tuning

• Bluetooth (iPhone or Android app must be downloaded to use this feature)
• 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.

This kit is compatible with the following

• Audi S4 B8
• Audi S4 B8.5

*If you aren't sure whether this kit fits your car, send us a picture of your engine bay with the engine cover removed to info@fuel-it.com

*Free shipping in USA on complete kits only. 

*Ethanol Sensors don't actually read the ethanol content, the readings are based on the absence of gasoline, so if your fuel is contaminated your ethanol readings may be artificially elevated.

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