Audi RS4 B8 with BRUTAL Milltek Exhaust! LOUD Revs & Accelerations! Acceleration & Sound by turboandstance - January 21, 2021 This time I have filmed a loud Audi RS4 Avant B8 fitted with a Milltek Exhaust System. The video shows you some revs and loud accelerations! I hope you enjoy the video of this Audi RS4 avant. Don’t forget to share this one with your friends and follow us also on Facebook, Pinterest or Instagram!