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Fuel-It!

Bluetooth Flex Fuel Kit

Name: Bluetooth Flex Fuel Kit
Brand: Fuel-It!
SKU: Fuelit-s4-b8-b85
Price: 449.95 USD
Availability: InStock

$449.95

SKU: Fuelit-s4-b8-b85

In Stock

Ships by Aug 31

Free Shipping over $200

$100 Minimum Order

30 Days Return

Description

The Fuel-It! Bluetooth Flex Fuel Kit provides real-time ethanol content monitoring for your Audi S4 B8 and B8.5. This complete plug-and-play system can be installed in approximately 30 minutes, offering a straightforward E85 solution. The kit includes new 5/16" E85-compatible fuel lines, a genuine Continental ethanol sensor, a Fuel-It! Bluetooth analyzer, a 5/16" quick-connect fitting, and Oetiker crimp clamps for secure installation. This kit offers both Bluetooth app connectivity (for iPhone or Android) and a 5v analog output, making it compatible with JB4 or flash tuning solutions. By monitoring your ethanol content, you can optimize your engine's performance and prevent potential damage when using E85 or other ethanol blends.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Available on iOS & Android

Specifications

Brand	Fuel-It!
Part Number	Fuelit-s4-b8-b85
Category	Air and Fuel

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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