
What is this line in my n52 530xi e60.
Saw a leak coming from there smells like gas might need to replace it urgently don’t know the part the one I’m touching.

Saw a leak coming from there smells like gas might need to replace it urgently don’t know the part the one I’m touching.
Car - 2007 e60 530xi 6 speed manual n52.
I have been wanting to enjoy my car more recently, and want a burble tune for my car. It is by no means fast nor do I think it’s a race car but my primitive brain just skyrockets my dopamine when I hear burbles and decided I want them has anyone tried tuning their cars themselves here and can push me in the right direction I don’t mind doing it myself I just want to get told the easiest way to accomplish my goal right now. (Before anyone says it’s a bad idea or this and that save it Ik the consequences of burbles Ik the cats can get clogged this and that idc I just like burbles to each their own)
Any help is appreciated
This is my first car as a teen and I’m building it slowly but surely it’s sitting on coils 18inch wheels power coated. Needs a good old paint job and new headlight but Idk I want creative critics and any recommendations are welcomed ❤️