MAD X3 X4 M40 catback exhaust B58 G01 G02 CS trunk spoiler and Blue Spring Rated -18

and Blue Spring Rated -18 to -14 InHg (installed)

2012-2016 F10 M5

Fitment: 2014+ F32/F33/F36 4 Series

Please check your state or local laws before installation

filter housing o-ring

MAD X3 X4 M40 catback exhaust B58 G01 G02 CS trunk spoiler and Blue Spring Rated -18MAD X3 X4 M40 Catback Exhaust B58 G01 G02 Unleash the Ultimate Sound and Performance Experience the perfect blend of sound, performance, and style with the MAD Catback Exhaust System for your BMW X3 M40i (G01) and X4 M40i (G02) equipped with the B58 engine. Elevate Your Driving Experience Transform your BMW's exhaust note to a deep midrange sound that is both exhilarating and refined. The MAD Catback Exhaust delivers a rasp free, zero drone, and zero