Active Autowerke BMW S58 F97/F98 X3M/X4M Downpipes w Aflow CATs 1M

Active Autowerke BMW S58 F97/F98 X3M/X4M Downpipes w Aflow CATs 1MNO 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

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

2) Purchase a Simon4 cable from Active Autowerke and install the software yourself

and electronic or mechanical

Active Autowerke is proud to release the advanced Active Autowerke Signature Catted Downpipes with GESI G-Sport cats for the BMW G80 M3

The GESi G-Sport Ultra High Output Catalytic Converter features full 304 stainless steel construction

Detailed Step by Step Instructions

resulting in substantial HP and torque gains

Eight-Rib Pulley System

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

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a solid 15+hp boost and key gains in the midrange with the valve open while the sound comes out non intrusive with a rich mellow tone with the valve closed

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