Catalytic converter on a Honda Accord.

My check engine light came on, in my Honda Accord EX. Took it to the dealer, and they ran a diagnostic, and found a bad cat converter. They gave me a quote of $1976.00, plus some change. Today I took it to a muffler shop that has done all my exhaust work since 1984. He told me he could replace it for $351.00. I said do it. Here is the kicker, he said he does the Honda dealer's exhaust work also. So, if I had let the dealer do it, he would have taken my $1976.00, drove it down to the muffler shop, paid them $351.00, and made a profit of $1625.00. And all without using a gun! I was stunned, to say the least. That is robbery, pure and simple, and I thought lawyers were lowlife.