Audi RS5 B9 2.9 V6 Turbo Coupe (OPF/GPF Models) YOC: 2017 - Part: Cat-back Info: Cat Back Non-Resonated Race (Loudest) - with Cerakote Black Oval Trims tailpipe design: pipe diameter: 70mm /2,76inch EC-approved: No Race system: No Valvesonic: No Part no.: SSXAU850