Audi A4 2.0 TFSI B7 quattro and DTM YOC: 2005 - 2008 Part: Cat-back Info: Non-resonated (louder) with 100mm detachable trims. Manual models only tailpipe design: Dual 100mm Jet pipe diameter: 63,5mm /2,5inch EC-approved: No Race system: No Valvesonic: No Part no.: SSXAU309