QST ECU Software Audi RS6/7 C7

Inc. VAT

QST ECU Software for the 4.0TFSI Audi RS6/7 C7 8V.2. 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.

Stage 1: 



Stage 2:



*Stage 2 Requires Downpipes, Performance air filter, NGK Race plugs*

ECU/TCU Software

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