The Downpipe Kit fits in to:

BMW M135i(x) F20 / F21 till 06/2013
BMW 335i(x) F30 / F31 / F34 till 06/2013
BMW 435i(x) F32 / F33 till 06/2013

Replacement for OEM BMW Part# 18328603875

made out of high quality stainless steel 1.4301 (SS304)
100% perfect fit, replace OEM
less thermal load on the turbocharger
more power by reducing back pressure
significantly more torque
200CPSI catalytic converter
connection diameter 105mm

Error display in the DME possible.