1400HP Audi S4 B5 Biturbo TTD 311Km/h Brutal Accelerations! Uncategorized by turboandstance - July 28, 2018September 26, 2020 This timed we have an extremely fast Audi S4 B5 2.7 Bi-Turbo in action on the 1/2 mile race event in Germany. Vmax was an astonishing 303,19 km/h! Thanks to the 3.0L RS4 engine equipped with a GT3086 turbocharger! The guys at TTD have tuned this car to an astonishing 1442HP, that’s what I call ‘a real sleeper’! Leave a comment