M550i XDRIVE 2019.

I mainly want a sound upgrade, because stock sound is too quiet. I liked the sound of Borla s-type catback, but they donít make it for my car, muffler shop said they can custom make one for me.

Anyway, I have no experience with Exhaust systems, especially custom made ones, so I need to be informed before I do anything.

I don't want something cheap that wonít sound good and will have hurt the performance of the car. I donít want drone in the car. I like the deep sound. What setup do you have/recommend for me?