MAD X3 X4 M40 Catback Exhaust B58 G01 G02 2-Point and handling with MAD G

and handling with MAD G Chassis Wheel Spacers

or 8 Ohm impedance

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The Re|Flex firmware and XDF’s include ethanol compensation tables to scale properly for varying ethanol % based on real time input from the sensor

The Center Cross bar on the bumper is to support the bumper's structure during transportation and storage

MAD X3 X4 M40 Catback Exhaust B58 G01 G02 2-Point and handling with MAD GUnleash the full potential of your BMW X3 M40i (G01) or X4 M40i (G02) with the MAD Catback Exhaust System. Designed for vehicles equipped with the B58 engine, this exhaust system delivers a remarkable balance of deep sound, performance improvements, and aesthetic appeal. Experience a dynamic exhaust note, free from drone or rattle, while boosting your vehicle's overall performance. Elevate Your Driving Experience The MAD Catback Exhaust transforms