Milltek BMW 1 Series M135i xDrive 5 Door (F40 OPF/GPF Equipped) 2019-2023 Particulate Filter-back Exhaust

All Milltek performance exhaust systems are manufactured from T304L stainless-steel; giving you the satisfaction of knowing that our products are meant to last within some of the toughest environments. T304L is a highly durable form of stainless-steel that is far less susceptible to degradation and discolouration than many others of its kind, while it will last almost indefinitely.