Exhaust Systems for the 2014-20 BMW F32 4-Series Coupe, F33 Convertible and F36 Gran Coupe (428i, 430i, 435i and 440i): axle-back mufflers, full cat-back systems, downpipes and front pipes, mid-pipes, valve simulators and muffler deletes in T304 stainless, with chrome, black and carbon tip options. Exhaust is the one upgrade you hear every single drive. Everything on this page is confirmed for 4-Series fitment.
Coupe, convertible and Gran Coupe share the front end and use the same M Sport or standard bumpers, so front parts cross over; rear pieces are body-specific. Exhaust systems fit by engine — four-cylinder and six-cylinder systems are different. This page covers 428i / 430i, 435i / 440i and M Sport; each listing states the exact trims and model years it fits.
Materials run T304 stainless steel. Systems are mandrel-bent and TIG-welded; each listing states resonated or non-resonated and the tip finish.
Frequently asked
Will I get drone at highway speed? Resonated systems here are tuned to stay quiet at cruise and open up under throttle. Non-resonated and muffler-delete options are louder throughout and say so.
Do I need a tune? Axle-back and cat-back systems are bolt-on with no tune required. Downpipes and header changes are the only ones that may need one — each listing states it.
Browse all 2014-20 4-Series parts.