So I took a few moments to try and track down the minor exhaust leak on the Cougar and I'm thinking it's coming from the driver's side cat. I was thinking about cutting off the heat shields to get a better idea, patching up the leak (it doesn't sound like a major leak), then reattaching the heat shields. I was wondering what might be the best way of sealing the leak. Would a high temperature epoxy hold up against the extreme heat? Or would I be better getting some sheet metal brazed onto it? The cat itself doesn't appear to be bad and with this being the 'beater' car I can't justify spending the money to buy a new cat and have it installed.