Audi RS6 C6 5.0 V10 biturbo quattro YOC: 2008 - 2010 Part: Cat-back Info: Non Resonated (Louder) Ceramic-coated Black Satin Dual-Oval Trims tailpipe design: pipe diameter: 69,85mm /2,75inch EC-approved: No Race system: No Valvesonic: No Part no.: SSXAU603