Flex Fuel Sensor Kit

The Integrated Engineering IEELCK2 TrueFlex Sensor Kit is engineered for Audi B9 S4, S5, RS5, RS4, and SQ5 models with 3.0T or 2.9TT engines. This plug-and-play kit enables your factory engine computer to read and transmit real-time ethanol content to an advanced TrueFlex tune, unlocking significant power potential when running fuels from premium 91/93 octane all the way up to E85. Installation is straightforward, with a step-by-step guide provided. Once installed and the TrueFlex tune is flashed via the PowerLink app, you can use any blend of gasoline and ethanol. The system allows you to monitor your ethanol content directly within the app, providing a seamless user experience. This kit requires the iE B9 3.0T or 2.9TT POWERlink Tuning Suite and the iE TrueFlex Sensor Harness Kit. For maximum power gains, an iE upgraded HPFP is also recommended. TrueFlex tuning is available for North American 2017-2024 B9/B9.5 S4, S5, RS5, RS4, and SQ5 models. However, TrueFlex tuning is not currently supported for Rest-of-world (ROW) ECUs (Europe, Asia, Australia, etc.) for S4, S5, and SQ5 models.