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Whether F32 coupé or F33 convertible with folding hardtop, from 2016 the 440i was the 4 Series with the B58 straight-six: 3.0 litres, turbocharged, 326 PS and 450 Nm, replacing the N55 of the 435i. Available with rear-wheel or xDrive all-wheel drive, it sits just below the M4.
For the BMW 440i (F32/F33) B58 Coupé/Cabriolet Non-OPF (2016-2019), 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 BMW are on their own page.
