So searching and see a lot of talk about a tapping or rattle due to a clip onto the exhaust, not my problem. On my 2010, I replaced the broken studs with factory hardened studs, manifolds planed, and new OEM gaskets. Everything looks tight and don’t believe it’s an exhaust leak. But when I really get on it, it sounds like what I believe my father used to call “valves floating.” I don’t know how to explain it. I’ve been worried welding nuts onto the broken studs could’ve damaged the heads. Absolutely no codes thrown and it doesn’t appear to affect the performance. More of an embarrassment to really drop the hammer as I can hear it when the windows are down (especially on drivers side when passing objects) so I’m assuming others hear it. My neighbor (Jeeper) says it sounds normal. Is it me? Is it a Hemi thing? Do I keep driving it until it shoots a code or should I have it checked out by a professional?