shandy92 wrote:
could be an exhaust leak, but its hard to say. You can pull the heat shield of the exhaust manifold and check for cracks, its a fairly common thing to happen.
I have a feeling it's not an exhaust leak it's a bit to irregular and inconsistent from my knowledge. Some days it is very obvious and regular and other days there is nothing at all. I'll try and catch it on video and see if that can give a few more details.