RaceChip RS - Audi RS4 (B9) (from 2017) RS4 2.9T (450 HP/ 331 kW)
Performance tuning for your Audi RS4 (B9) RS4 2.9T
The RaceChip RS is our mid-range performance chip, offering significant power gains with wire-free installation. Advanced tuning maps optimised for...
£399.00