Below is information direct from Germany regarding this product.
It may show additional information about fitment and specification.
New release 4. quarter 2019
Downpipe Kit with 200CPSI Racing catalyst for BMW M3/M4 F80/82/83 without GPF!
made out of high quality stainless steel 1.4301 (SS304)
complete Ø3 Inch and adapter for stock exhaust
Racing Metal Catalytic Converter (200CPSI with high quality EURO 6 coating)
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.