Audi RS4 B7 4.2 V8 Saloon Avant and Cabriolet YOC: 2006 - 2008 Part: Cat-back Info: Non-resonated (louder). Including Exhaust Valves. Including Satin Sheen Black Tips tailpipe design: Satin Sheen Black Tip Satin Sheen Black Tip pipe diameter: 60mm /2,36inch EC-approved: No Race system: No Valvesonic: No Part no.: SSXAU218