WagnerTuningBMWF-SeriesM135i335i435iN55CattedDownpipeKit

The Downpipe Kit fits in to:BMW M135i(x) F20 / F21 till 06/2013BMW 335i(x) F30 / F31 / F34 till 06/2013BMW 435i(x) F32 / F33 till 06/2013Replacement for OEM BMW Part# 18328603875made out of high quality stainless steel 1.4301 (SS304)100% perfect fit, replace OEMless thermal load on the turbochargermore power by reducing back pressuresignificantly more torque200CPSI catalytic converterconnection diameter 105mmError display in the DME possible.