Audi RS6 C8 4.0 V8 bi-turbo (OPF/GPF Models) YOC: 2019 - Part: Front Pipe-back Info: Front Silencer Back System (Twin 80mm) with Polished Oval Trims - EC Approved tailpipe design: pipe diameter: 80mm /3,15inch EC-approved: Yes Race system: No Valvesonic: No Part no.: SSXAU862