Active Autowerke BMW S58 F97/F98 X3M/X4M Downpipes w Aflow CATs 1M Detailed Step by Step Instructions

Detailed Step by Step Instructions

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

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

resulting in substantial HP and torque gains

Active Autowerke BMW S58 F97/F98 X3M/X4M Downpipes w Aflow CATs 1M Detailed Step by Step InstructionsNO 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