is it worth installing cam in stock 318?

Hey guys. I was just reading through the thread here and have a question myself. I have a stock 318 in my Demon and its in such good and factory condition that it sounds "too calm". I know first thing to do it get headers but what I really want it the rough idle sound and I heard in some youtube videos that I get that sounds mainly through the cams. Im just wondering which cams you guys would recommend. Like I said, I dont want smooth idle, I want rough. Something that really opens up air wise. This is the sound Im looking for or better:



Any kits you could recommend? Thank you in advance.