We saw a couple of Porsche 991 Turbo S' in The Netherlands which have been fitted with an Akrapovic exhaust system. In this video you can see some loud accelerations and revs. We saw them in the past weeks at the StreetGasm Ride Out, DAY1 World of Cars and last year at a couple of Cars and Business events, NoXcuse Fall Edition and StreetGasm Spring Drive.