Audi A1 1.4 TFSI S line 122PS YOC: 2010 - 2015 Part: Cat-back Info: Resonated (quieter) cat-back with Cerakote Black Tips tailpipe design: Twin 80mm GT80 pipe diameter: 63,5mm /2,5inch EC-approved: No Race system: No Valvesonic: No Part no.: SSXAU458