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QST ECU Software (Remap) for the Audi RS4 B7. Our Software has been expertly developed on the dyno and tested vigorously on the road to provide a fully developed tuning solution offering exceptional gains in HP and Torque throughout the powerband and drivability exceeding expectations whilst still maintaining complete reliability as you would expect.
*Flap Delete software option available*
Included in the price is Before and after dyno time with pre-tuning health-check in our workshop.
Power gains of up to:
Gains are dependent on vehicle health and fuel quality, QST recommend Shell V-Power or Tesco Momentum Fuels.