Times are changing.  991.2 RS gets regularly banned from tracks because of too loud stock exhaust. This included the Riing. When I was there quite a few cars had to have extra silencers fitted on their exhaust as to be sure to comply with the sound mesures. 

Loud exhaust are not tolerated anymore. Even on tracks. 

This 992 does not sound too bad at all. Less loud but still a nice type of growl. 


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 964 Carrera 4 --  997.2 C2S , -20mm -- 991.2 GT3 RS