HGP Tuned the new Audi RS6 to 786HP and 1061Nm Acceleration & Sound Misc by turboandstance - January 24, 2020January 24, 2020 The new Audi RS6 Avant has only just been found on the roads, and it's already a much discussed car. Milltek has already developed an exhaust and now it is HGP that gives the RS6 Avant C8 more power! As if the 600 hp and 800 Nm of torque of the