Audi RS6 Tuning RS6 in for Power gains AUDI C3 RS6 This early classic showed up for maintenance and custom tune. Powered by a V8 Twin Turbo this car puts out 479whp and 416wtq with Custom Solo Motorsports Tune December 6, 2017 CATEGORY: Audi Service, Audi Tuning, News No Comments 4 Likes
