[C320-list] exhaust mixing elbows

[STINKIN GRINGO]

I was thinking of replacing all 3 pieces of the mixing elbow this spring
just for the fun of it before something happens.But the price from my
dealer is $440.00 is that the going rate just for the parts? I have the
3GM30 with 500 hours just have a little rust around one of the
joints.Any thoughts other than if it ain't broke don't fix it. Thanks
Ken #711