Can I separate a 2000 Honda Civic EX exhaust manifold from its catalytic converter?

Just learned that I have a crack in the exhaust manifold of my 2000 Honda Civic EX. I could buy a new manifold with a attached catalytic converter for about $170 but could get a used manifold for $12. I would rather save myself the $100+ by just replacing the manifold. So my question is would I be able to separate the exhaust manifold from the catalytic converter, and switch in a functional but used one?

Go to a Honda Dealers parts counter and ask to see the exhaust manifold and converter on their parts chart.

No you can't but you can get a used one here as low as $35.00.

I have welded many of those back together. They'll last another couple of years welded, some even a bit longer.

  • How could I put a catalytic converter on a Honda civic 2000? OK this honda civic 2000 hatchback does not have a catalytic converter. Is there anyway I could get it new and installed without a problem? My car has a pipe instead of a catalytic converter and it I need it to put the oxygen sensor on it.
  • Does anyone in Colorado know any cheap ways to get a catalytic converter/manifold exhaust leak repair? I took my car into Goodyear today and found out I have a manifold exhaust leak and that I need a new catalytic converter. I drive a 2001 Honda Civic LX and am incredibly inexperienced with cars. The price estimate was $883.37 and I was wondering if anyone in Colorado Springs know of a mechanic that will do the repairs cheaper or a mechanic that will install maybe an aftermarket cat converter? If I looked for aftermarket converters, what would I need?!
  • Does a Honda civic 2000 waste more has without a catalytic converter? I have a Honda civic 2000 without a cat and has a pipe instead, it needs the secondary oxygen sensor. But I was wondering if the catalytic converter affects the gas usage an anyway?
  • Do honda civic 2000 have catalytic converter? OK I was wondering if the honda civic 2000 should have two oxygen sensors. But the problem is all the honda civics that are the same only have one and also doesn't have a catalytic converter. Is this a problem? I'm afraid this is the reason why the car wastes a lot of gas.