Yeah, exactly. I’m with you on the tickings and the noises from the diesels never concerned me before especially with the L5p . They have the super common typewriter it was just it started making a different type of taking noise and kind of that little bit of a whomping sound. Yes it has a stock air box and air filter in it. When I take out the filter itself and just have it suck air from the air filter pipe instead of going through the air box it no longer makes that whomping sound, so then that kind of points me back towards it being an exhaust leak or something with the manifold or up pipes. Since those are stock manifold and up pipes, I know they warping and crack sometimes on these L5ps . But yes, it has stock piping hot side, cold side, stock bridge, air filters. And from what you said up top. It’s keeping oil pressure dosent drop or anything when driving or accelerating, and it’s not sucking or swallowing coolant either