Catalytic converter replacement

[zahir]

Can anyone tell me when the catalytic converter is replaced in Prado? I have Prado, 2009 model and I could see the smoke coming out when starting up. Took it to the dealer, and they are saying that they need to replace the catalytic converter. They told me this by an email. Then I asked them you explain me when to replace the catalytic converter. If I am satisfied, I will give you a green signal to do so. But no response yet. If somebody knows about this, please help me. Can anyone tell me when the catalytic converter is replaced in Prado? I have Prado, 2009 model and I could see the smoke coming out when starting up. Took it to the dealer, and they are saying that they need to replace the catalytic converter. They told me this by an email. Then I asked them you explain me when to replace the catalytic converter. If I am satisfied, I will give you a green signal to do so. But no response yet. If somebody knows about this, please help me.