The German tuning company from Wettstetten managed to add 100 HP to the factory Audi S4. This was done thanks to a new electronic device from the tuner's Cantronic range. The M-Cantronic, as it is ...
Avus Performance has released a new tuning kit for the 2010 Audi S4, which includes a set of exterior modifications, a new suspension and an engine upgrade. The German sedan’s supercharged 3.0 liter ...
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