Description
Maximize Your Flex-Fuel Potential with the IE TrueFlex Sensor Kit
Unlock the full power of your Audi B9 S4, S5, RS5, RS4, or SQ5 equipped with the 3.0T or 2.9TT engine by installing the IE TrueFlex Sensor Kit. This plug-and-play sensor harness kit is essential for enabling Integrated Engineering’s advanced TrueFlex ethanol tuning, allowing your factory ECU to monitor real-time ethanol content. Run from premium pump gas (91/93 octane) up to E85 on a single tune for flexible, high-performance fuel options.
Key Features
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Plug-and-play harness kit for IE B9 3.0T / 2.9TT TrueFlex tunes
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Includes all components required for installation
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Real-time, reliable ethanol content readings
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Supports fuel blends from premium 91/93 octane to E85
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Enables seamless flex-fuel operation with one tune
Effortless Ethanol Tuning
Ethanol fuel offers higher octane and improved knock resistance for your B9 3.0T or 2.9TT engine. The IE TrueFlex Sensor Kit provides the critical sensor hardware that allows your factory ECU to detect and communicate ethanol content directly to the TrueFlex tune. Simply install the kit, flash the TrueFlex tune using the IE PowerLink app, and enjoy enhanced performance on any ethanol blend.
TrueFlex System Requirements
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IE B9 3.0T or 2.9TT POWERlink Tuning Suite
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IE TrueFlex Sensor Harness Kit (this product)
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IE upgraded High-Pressure Fuel Pump (HPFP) for full ethanol fueling capability
Please verify your vehicle’s compatibility and TrueFlex tune stage on the IE B9 3.0T/2.9TT Performance ECU Tunes pages.
Installation
Installation is straightforward with IE’s detailed step-by-step instructions. After installing the sensor kit, simply flash your ECU with the TrueFlex tune using the PowerLink app. Monitor ethanol content in real time, and switch fuel blends on the fly without changing tunes.
