BMW M4 F83 with AKRAPOVIC EXHAUST + ITRONIC VALVE CONTROL

We installed an Akrapovic exhaust and our iTronic engine controller on this BMW M4 F83. With the optional iTronic exhaust valve control it's possible to open, close or reset the exhaust valve to factory settings. Do you like the open valve sound?

[@davidamg1834]

Is This Exhaust legal in germany ?

[@MosselmanTV]

The exhaust system is from Akrapovic and it has an ECE type approval.