u/YakAdministrative548

From what I’m seeing it seems the 2020 was obviously the loudest and sounded the best. It’s known since then they toned down the burbles and sound. In 2022 and up the car came standard with a metal oil pump. So it seems 2020 had the best sound and 2022 up has the metal oil pump and 2021 has neither. I don’t have the ZTK package or whatever on the 2021 so it seems like the worse of both worlds since I don’t get the 2020 sound or 2022+ reliability.

For the 2021 m340, which is better? The thing I like about the Dinan axbleback is that it uses the stock valves, but the valvetronic seems to be louder and has its own valves. Please let me know!

Curious on settling this debate, both are great…but which is better? I have my answer but what’s yours?