Audi A4 2.0 TFSI B9 Quattro Saloon + Avant (Non OPF/GPF Models + Without Brace Bars) YOC: 2016 - 2023 Part: Cat-back Info: Non Resonated (Louder) with Dual GT-100 Burnt Titanium Trims tailpipe design: GT-100 pipe diameter: N/Amm / N/Ainch EC-approved: No Race system: No Valvesonic: No Part no.: SSXAU618