Milltek Audi RS3 Sportback 400PS (8V MQB Facelift) Non OPF/GPF Models 2017-2018 Cat Back Exhaust Option:80mm Race Non-Resonated / Burnt Titanium Tips Thin and stacked cooling fins

Thin and stacked cooling fins result in a tight structure and very efficient heat transfer

90mmInner spring internal diameter: 16

as are the factory electronic bypass valves

BMW M5 / 5-Series F10/F11 (2009-2016)

There are always more available

Milltek Audi RS3 Sportback 400PS (8V MQB Facelift) Non OPF/GPF Models 2017-2018 Cat Back Exhaust Option:80mm Race Non-Resonated / Burnt Titanium Tips Thin and stacked cooling finsAll 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.