Active Autowerke BMW S58 F97/F98 X3M/X4M Downpipes w Aflow CATs 1M Bottom line: you get to

Bottom line: you get to experience M3 performance in a 328i at an incredibly affordable price

Active AFlow Series Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant

we wanted our F8X Mid Pipe to stand out from the rest

Eight-Rib Pulley System

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Active Autowerke BMW S58 F97/F98 X3M/X4M Downpipes w Aflow CATs 1M Bottom line: you get toNO PERFORMANCE TUNE NEEDED. NOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non US model cars. Active Autowerke BMW X3M S58 Downpipes BMW introduced a new valvetronic, single turbo version of its direct injection engine for the later F Chassis models beginning in 2016 and continues into the G Chassis models the evolution to the S58 engine continues with the twin turbo variant used in the M series