Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Audi Flex Fuel

Sort By
Filter By
Return to Top

IE TrueFlex Sensor Harness

ES#4418852 - IEELCI2 - IE TrueFlex Sensor Harness - Includes everything necessary for the flex-fuel sensor to send real-time data from your fuel system to the ECU - Integrated Engineering - Audi Volkswagen

Includes everything necessary for the flex-fuel sensor to send real-time data from your fuel system to the ECU Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!
For vehicles up through the 2017 model year only. 2018+ tune support coming soon!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4418852
Mfg#:
IEELCI2
In Stock
$241.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE TrueFlex Sensor Kit For Audi B9 S4, S5, SQ5

ES#4830270 - IEELCK2 - IE TrueFlex Sensor Kit For Audi B9 S4, S5, SQ5 - Plug-&-play kit for iE B9/B9.5 3.0T TrueFlex Tunes - Integrated Engineering - Audi

Plug-&-play kit for iE B9/B9.5 3.0T TrueFlex Tunes Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4830270
Mfg#:
IEELCK2
In Stock
$461.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Unitronic UniFLEX Hardware Kit (w/ Sensor) For 2.5TFSI EVO

ES#4730285 - UH011-FLA - Unitronic UniFLEX Hardware Kit (w/ Sensor) For 2.5TFSI EVO - UniFLEX Hardware Kit includes all necessary components to make flex-fuel integration as effortless as possible. - Unitronic - Audi

UniFLEX Hardware Kit includes all necessary components to make flex-fuel integration as effortless as possible.

Brand:
Unitronic - Corporate Logo
ES#:
4730285
Mfg#:
UH011-FLA
In Stock
$399.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Unitronic UniFLEX Hardware Kit - With Sensor

ES#4785773 - UH013-FLA - Unitronic UniFLEX Hardware Kit - With Sensor - This kit allows for true plug-and-play installation to make flex-fuel integration as effortless as possible. - Unitronic - Audi Volkswagen

This kit allows for true plug-and-play installation to make flex-fuel integration as effortless as possible.

Brand:
Unitronic - Corporate Logo
ES#:
4785773
Mfg#:
UH013-FLA
In Stock
$399.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Trueflex Ethanol Harness Kit

ES#5375191 - IEELDB1 - IE Trueflex Ethanol Harness Kit - A complete plug-and-play harness is everything required to utilize iE VW MK8/Audi 8Y TrueFlex tuning features - Integrated Engineering - Audi Volkswagen

A complete plug-and-play harness is everything required to utilize iE VW MK8/Audi 8Y TrueFlex tuning features Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!

Brand:
Integrated Engineering - Corporate Logo
ES#:
5375191
Mfg#:
IEELDB1
Ships in 2 Business Days
$349.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

COBB Flex Fuel Upgrade Kit

ES#4759401 - 3V2650 - COBB Flex Fuel Upgrade Kit - Includes an ethanol content sensor with bracket, bespoke wiring harness, a fuse tap harness, quick connect fuel fittings, and an ECU pin locator template and pin tool - CobbTuning - Audi Volkswagen

Includes an ethanol content sensor with bracket, bespoke wiring harness, a fuse tap harness, quick connect fuel fittings, and an ECU pin locator template and pin tool

Brand:
CobbTuning - Corporate Logo
ES#:
4759401
Mfg#:
3V2650
Ships in 9 Business Days
$245.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ethanol Sensor Bypass Mount Upgrade

ES#4812502 - E85-BPM-6-8AN - Ethanol Sensor Bypass Mount Upgrade - Get a full flow from your E85 flex fuel sensors to your fuel rails. - 40T Performance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Get a full flow from your E85 flex fuel sensors to your fuel rails.

Brand:
40T Performance - Corporate Logo
ES#:
4812502
Mfg#:
E85-BPM-6-8AN
Ships in 6 Business Days
$139.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

COBB Stage 1 + Flex Fuel Power Package

ES#4759411 - VLK0020010FF - COBB Stage 1 + Flex Fuel Power Package - Unleash the most out of your MK7/8V with this Stage 1 power pack from COBB! - CobbTuning - Audi Volkswagen

Unleash the most out of your MK7/8V with this Stage 1 power pack from COBB!

Brand:
CobbTuning - Corporate Logo
ES#:
4759411
Mfg#:
VLK0020010FF
Ships in 3 Business Days
$1020.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High Flow Flex Fuel Line Bypass WITH Sensor And Harness - Audi S6 & S7

ES#4818004 - C7-4.0T-HARNESS - High Flow Flex Fuel Line Bypass WITH Sensor And Harness - Audi S6 & S7 - Elevate Your Audi S7 4.0T with the 40T Performance Flex Fuel Engine Bay Kit. This kit also includes the sensor and harness for the full installation! - 40T Performance - Audi

Elevate Your Audi S7 4.0T with the 40T Performance Flex Fuel Engine Bay Kit. This kit also includes the sensor and harness for the full installation!

Brand:
40T Performance - Corporate Logo
ES#:
4818004
Mfg#:
C7-4.0T-HARNESS
Back Ordered
$399.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Unitronic UniFLEX Hardware Kit For 2.5TFSI EVO

ES#4730286 - UH010-FLA - Unitronic UniFLEX Hardware Kit For 2.5TFSI EVO - UniFLEX Hardware Kit includes the key components to make flex-fuel integration as effortless as possible. - Unitronic - Audi

UniFLEX Hardware Kit includes the key components to make flex-fuel integration as effortless as possible.

Brand:
Unitronic - Corporate Logo
ES#:
4730286
Mfg#:
UH010-FLA
Ships in 6 Business Days
$299.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

8 Ft Ethanol Sensor Connector Pigtail Harness

ES#4818008 - FLEX-PIGTAIL-8FT - 8 Ft Ethanol Sensor Connector Pigtail Harness - Enough length of wiring to run from the engine bay to the diagnostic port. - 40T Performance - Audi

Enough length of wiring to run from the engine bay to the diagnostic port.

Brand:
40T Performance - Corporate Logo
ES#:
4818008
Mfg#:
FLEX-PIGTAIL-8FT
Back Ordered
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Flow Flex Fuel Line Bypass - Audi S6 & S7

ES#4818001 - C7-4.0T-FLEXFUEL - High Flow Flex Fuel Line Bypass - Audi S6 & S7 - Elevate Your Audi S7 4.0T with the 40T Performance Flex Fuel Engine Bay Kit! - 40T Performance - Audi

Elevate Your Audi S7 4.0T with the 40T Performance Flex Fuel Engine Bay Kit!

Brand:
40T Performance - Corporate Logo
ES#:
4818001
Mfg#:
C7-4.0T-FLEXFUEL
Back Ordered
$298.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

UniFLEX Bracket For MQB Chassis

ES#4730287 - UH003-TL0 - UniFLEX Bracket For MQB Chassis - This bracket allows installation of the UniFLEX device in vertical or horizontal orientation. - Unitronic - Audi

This bracket allows installation of the UniFLEX device in vertical or horizontal orientation.

Brand:
Unitronic - Corporate Logo
ES#:
4730287
Mfg#:
UH003-TL0
In Stock
$19.99 USD
Free Shipping
on orders $49 and up

IE TrueFlex Sensor Kit

ES#4880950 - IEELCK3 - IE TrueFlex Sensor Kit - This sensor kit is the required harness upgrade to convert your 2.0T engine to flex-fuel. - Integrated Engineering - Audi

This sensor kit is the required harness upgrade to convert your 2.0T engine to flex-fuel. Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4880950
Mfg#:
IEELCK3
Ships in 4 Business Days
$241.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Other Audi Flex Fuel

Let us help you find the parts that fit your Audi

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings