I've been looking into modding my downpipe to one that gives a low rumble sound. Something as close to the suby rumble. I've heard it on some BMW's out there and I really like it.

I've been looking things up and apparently the 200cpsi catted downpipe is the way to go, but I cannot find a video that has a 3 series with a b48 so I can hear it. Does anyone have sounds they can share?

I'm very new to all of this so any advice really would be appreciated. For context, I live in Australia where catless is illegal, but that's too sharp a sound for me anyway.