S58 Equal Length Exhaust Battle! Valvetronic VS Active Autowerke Sound Comparison

Important note: the M3 equipped with the Valvetronic exhaust has a custom TCM tune from Sutphin Tuning, making the shifts super fast and without the "brap" sound. This is not a characteristic of any specific exhaust, but of the tuning. Short video today! We compare the Valvetronic Sport Exhaust with the new Active Autowerke Equal Length Exhaust. These are the two popular valved exhaust systems out right now for the G80/82 M3 and M4, that have an equal length mid section. Need parts installation or custom tuning for your B58 and S58? HIt us up! Email: [email protected] Phone: 832-786-9038 Check out our website for performance parts, custom tunes, merch, and our blog: https://goracebox.com/