Below is information direct from Germany regarding this product.
It may show additional information about fitment and specification.
New release 4. quarter 2018
Downpipe Kit with 200CPSI Racing catalyst for BMW M140i M240i 340i & 440i
made out of high quality stainless steel 1.4301 (SS304)
complete Ø3,5 and adapter for stock exhaust
200CPSI EU6 Racing Metal Catalytic Converter / optionally without catalyst converter
100% perfect fit, replace OEM
less thermal load on the turbocharger
more power by reducing back pressure
significantly more torque
Error display in the DME possible.