Yeah on that note ive managed to damage my exhaust (again) on a (pretty big) bump/jump halfway through nasho early this morning, it sounds pretty bad but its an easy fix - last time cost me $40 to fix. The noise goes up and down with the revs, and sounds all sorts of bad. Check the exhaust first anna
If its the same as last time its the front pipe being pulled away from the cat. But your car hasnt been doing anything like my car lately so check the manifold, then the rest of the zorst