My cobra has starting leaking more coolant over the last couple months. I am looking for a plate that is bolted to the back of the right side head. It has a coolant hose or something of the sort, hooked to it and it is leaking. At least it looks like it. It is rusted up pretty good. It looks almost impossible to get to. What is this? Can I replace the plate and hose together from underneath the car? Where can I buy a new setup of this thing, or an upgraded version of whatever this thing is?