MAD X3 X4 M40 catback exhaust B58 G01 G02 CS trunk spoiler Start and full points are

Start and full points are adjustable for engagement and delivery curve to match what the engine requires

the difference is in the housing color

Please check your state or local laws before installation

which is very apparent on lowered cars

filter housing o-ring

MAD X3 X4 M40 catback exhaust B58 G01 G02 CS trunk spoiler Start and full points areMAD 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