IE Performance ECU Tunes For Audi B9/B9.5 2.9T RS5 & RS4

AUDI

RS4

2018-2023

B9/B9.5

Important Note: 2021 models are equipped with advanced security locks that prevent Stage 2 Transmission tuning. iE calibrators are currently working on bypassing the security to offer TCU tuning for all model years. In the meantime, iE TCU Stage 1 is fully compatible and will allow full power output from the ECU tune.