BMW 1 Series M135i xDrive 5 Door (F40 OPF/GPF Equipped) YOC: 2012- Part: Particulate Filter-back Info: Maxton x Milltek - OPF/GPF Back System with Quad GT-100 Brushed Titanium Trims - ECE Approved (OE System Requires To Be Cut For Installation) - MUST BE Fitted with Maxton Diffuser tailpipe design: Quad 100mm GT100 pipe diameter: 76,2mm /3inch EC-approved: Yes Race system: No Valvesonic: No Part no.: SSXBM1246