Audi A1 1.4 TFSI S line 150PS ACT YOC: 2015 - 2018 Part: Cat-back Info: Non-resonated (louder) with Polished Tips. Suitable for both Xenon and non-Xenon equipped models. tailpipe design: Twin 80mm GT80 pipe diameter: 70mm /2,76inch EC-approved: No Race system: No Valvesonic: No Part no.: SSXVW155