05 Honda civic catalytic converter replacement do I need new 02 sensors also?

I have a 2005 Honda civic vp I'm gonna replace the exhaust manifold -catalytic converter cuz its cracked the weird then is that it's been like that 4 2 or 3 week and I haven't get the check engine on idk if it's good or bad the thing is that if I have to change the 02 sensors also

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