iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5
iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5

iE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5

IEELCK2

Rated 5.0 out of 5
Based on 12 reviews
$461.99
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Shipping calculated at checkout.
In Stock

LEADING FEATURES

  • Plug-&-play kit for iE B9 3.0T & 2.9TT TrueFlex Tunes
  • Includes everything needed to install
  • Reliable real-time ethanol content readings
  • Run premium 91/93 up to E85 on one tune

EFFORTLESS ETHANOL

Ethanol is rocket fuel for your B9 S4, S5, RS5, RS4, or SQ5. Our iE TrueFlex Sensor Kit is the required hardware upgrade to convert your 3.0T or 2.9TT engine to flex fuel. The sensor hardware allows your factory engine computer to read and instantly send the ethanol content of your fuel to our advanced TrueFlex tune, unleashing huge power.

INSTALLATION

Upgrading your 3.0T to TrueFlex is simple. Follow our step-by-step guide to install the sensor kit, then flash the TrueFlex tune with your PowerLink app. Fill up with either premium unleaded, E85, or any mix in between and enjoy maximum performance. You can monitor your ethanol content right on the app.

CLICK HERE TO DOWNLOAD INSTALL GUIDE

TRUELFEX REQUIREMENTS

  • Requires iE B9 3.0T or 2.9TT POWERlink Tuning Suite
  • Requires iE TrueFlex Sensor Harness Kit 
  • Requires iE upgraded HPFP for maximum power

Fitment Notes:
-Requires iE TrueFlex Tuning Suite, learn more on the iE B9 3.0T or 2.9TT tuning pages.

-TrueFlex tuning is available for North American 2017-2024 B9/B9.5 S4, S5, RS5, & RS4 & SQ5 models. TrueFlex tuning is not currently supported for Rest-of-world (ROW) ECUs (Europe, Asia, Australia, etc.) for S4, S5, SQ5.

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average rating 5.0 out of 5
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12 Reviews
Reviewed by David H.
Verified Reviewer
I recommend this product
Rated 5 out of 5
Review posted

Audi S5 Beast

Switching to flex fuel and running E85 was a significant upgrade. The car makes better sound, less heat, is surging to leap forward with throttle inputs, and makes tremendous power compared to 93 octane. Less mpg, but the lower cost of E85 versus 93 octane, saves me a bit of money with E85 and it’s a whole lot more fun to drive. I have every part available that IE offers for my make/model and I crush exotics on a daily basis.

2018 Audi B9 S5 Sportback

Pure 750 Turbo

IE Downpipe

IE HPFP with RS7 injectors

IE Race Series Intercooler

IE Cold Air Intake

IE Charge Pipe

Midpipe

IE Stage 3+ ECU tune

IE Stage 3 TCU tune

740 HP/710 Torque

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Reviewed by Mario G.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Plug and GO!

Installation was a breeze. Very happy with the results!

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Reviewed by Ethan S.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Great mod for the RS5 B9

Love this kit and how I can see the ethanol percentage on the app while driving. No need for an additional sensor monitor to be installed in the car. Instructions were a little off just as the model is slightly different but it was definitely doable.

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Reviewed by Cameron W.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Flex sensor kit

The quality is great!

Please update dash removal instructions for specific vehicles. But overall instructions were great!

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Reviewed by Mark S.
Verified Reviewer
I recommend this product
Rated 5 out of 5
Review posted

Read the reviews! Several little details left out.

Need to trim a small bit of the plastic on the fuse panel in the footwell for the fuse to sit in far enough to make good connection. Als would have been nice to included a picture of the pin out on the ECM connector, but if you look at the backside you can see the row is marked #20 and you can over count from there... Just a bit nerve racking, and you do not have to remove the windshield wiper cowl. And also the ethanol content will not read out until the software is installed... So no way to assure its working until your load the new tune...

Overall was a pretty easy install.

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