Two separate Honda dealers have diagnosed a failed catalytic converter
on my daughter's 2001 Honda CR/V. One wants $1,100 to fix it. The
other simply says, "Thousands." The catalytic converter needs to be
replaced. The car has 105,000 miles on it.

Can anyone give me an authorative real world estimate of what this
repair should cost, including if done by someone other than a dealer?

Thanks