You can not. There are no rebuilt cats and it is not legal to sell a used one.
Most recycle places that buy aluminum cans and the like will buy converters.
You can't, period. It is illegal to remove a catalytic converter without installing another one. Besides no modern engine will run correctly with the catalytic converter removed. Suck it up, buy a converter and have it installed.
Depends on what vehicle you are asking about.
There is one, if that is your question.You can buy one yes, if that is your question.
The manifold is considered before the catalytic converter.
Buy a new one or keep beating the crap out of the one that is clogged.
Don't buy used unless you can test for flow since they become restricted after their chemical exchangers become exhausted. They are cheap at a muffler shop.
A bad catalytic converter and stopped up muffler will slow down the car. The catalytic converter is under warranty up to 84,000 miles, if defective. If you ran over a speed bump and damaged it, you have to replace it. You can buy a lower catalytic converter for $120 from advance auto parts.
At a dealerships parts department.At a dealerships parts department.
you can buy a used one from a salvage yard or elsewhere that sells used parts, just make sure the honeycomb inside it isn't blocked or crumbling. $1200.00 is probably to have the shop replace it and you would definetly be better off if you knew how to do the work yourself, because you would only have to buy the part and not the mechanics' time as well.
The converter will cost from $275 to $325 depending on where you buy it. Labor to remove the old one and install a new one will be around $100.
There are two available options to replace the catalyticÊconverter. Option one, buy a universal converter that is the right size for the car. Cut the old converter from the exhaust pipes and weld on the new one. Option two, buy a direct fit converter that can be bolted in between the exhaust manifold and the exhaust pipe. No welding is needed but the direct fit converter costs more than the universal one.