INTEGRATED ENGINEERING PLUG AND PLAY FLEX SENSOR KIT W/HARNESS - AUDI S4, RS4 B9/S5, RS5 F5/SQ5 FY

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.

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.

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

Note: 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.