Long term ?s

Is there any long term damage to ur engine with clogged cats and a manifold leak. If so what is more important to replace first?

 

clogged cat makes your engine run hotter and have less power so that's the more important one to fix for engine life.

the cracked manifold is mainly a carbon monoxide filling the cab safety issue so it all depends on how bad its leaking and if its getting into the cab because that can make you pass out on a long drive with windows rolled up

 

bump for more opinions. thanks