Stage 1 ECU tune designed for factory hardware on pump gas to deliver thrilling, track-ready performance for Audi B9 and B9.5 RS4 and RS5 models directly from your smartphone.
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Stage 1 ECU tune designed for factory hardware on pump gas to deliver thrilling, track-ready performance for Audi B9 and B9.5 RS4 and RS5 models directly from your smartphone.
Increased power, higher RPM limit, faster shifts, variable launch control and additional transmission performance features
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States and Canada.