Milltek Audi S4 3.0 Turbo V6 B9 – Saloon/Sedan & Avant (Non Sport Diff Models) 2016-2023 Hi-Flow Sports Cat and Downpipe Exhaust – Milltek Fitment

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.