Armytrix Car Exhausts for Audi S4 (B9) 3.0 TFSI Sedan/Avant Non-OPF (2017-)

The B9 S4 dropped the previous series' supercharger for a 354 PS 3.0 TFSI turbo V6, with a single twin-scroll turbocharger placed inside the V between the cylinder banks. As a saloon or Avant, always with quattro drive and the eight-speed tiptronic, in Europe it was replaced in 2019 by the S4 TDI, while the petrol version stayed on sale in other markets.

For the Audi S4 (B9) 3.0 TFSI Sedan/Avant Non-OPF (2017-), Armytrix offers the cat-back system with Valvetronic silencers and downpipes. Tips are available in chrome silver, blue coated, matte black, carbon and gold. Versions without a catalyst are for track use only.

Armytrix builds its exhausts in Taiwan, in T304 stainless steel and titanium, and is one of the brands that made valved exhausts affordable: the valve sends the gases through the silencer or around it, and it is controlled with the supplied remote or a smartphone app through a module plugged into the OBD port. Armytrix exhausts are not road approved in the European Union or Switzerland: they are intended for track use.

Armytrix systems are prepared to order and the price is on request: contact us for a quote, for delivery times or if you have any doubt about compatibility with your car. All Armytrix exhausts for Audi are on their own page.