I've owned the same 97 Jeep wrangler since 2000. I'm ashamed to say that I've had a cracked exhaust manifold for some time and been told by the experts a broken catalytic converter. I replaced the radiator about 5 months ago, which cost about $800. I've been told that the exhuast manifold could be welded and knock off a good chunk of the price. If I were to replace the manifold & catalytic converter, I'm looking at $1000. I don't make a lot of money, so the welding option looks very good to me. Oh and did I mention, I love my jeep. Any advice would be appreciated.