Found my from start up tick tick tick by #2 when cold, I was going to pull the lifter stack there but seeing this confirmed it was an exhaust leak all along. It was hiding in the perfect spot to not be able to see it from above or below. This tube does nothing on the hellcat heads and JBA sent me a new header back then that’s still in the box yet, nothing wrong with this header except this tube needs blocked as it leaked on the header to gasket side not on the head side. I’ll tig a SS plug in there to seal it up.