BMW 1 Series M135i xDrive 5 Door (F40 OPF Modell) YOC: 2019 - 2023 Part: Particulate Filter-back Info: OPF/GPF Back System with GT-115 Burnt Titanium Trims (Proposed EC System Awaiting Testing) tailpipe design: 115 GT pipe diameter: 76,2mm /3inch EC-approved: Yes Race system: No Valvesonic: No Part no.: SSXBM1155