Welcome back to Unlockable Character! In this video, I go into more detail on my exhaust setup. I am running MAD (Mastery of Art and Design) fatboy catless downpipes and their single, non-resonated midpipe. I am also running two mini cats by Big Daddies Garage which prevents the check engine light on the car.

Be sure to watch through the whole video to see the car being revved with the valves closed and then open along with drive bys and some donuts!

#bmw #m4 #bmwm #bmwm4 #donuts #exhaust #drive #g82 #bmwm4competition #m4competition