Catalytic converter flange

[PeterW]

My catalytic converters are still passing the emissions test, but I'm thinking about how I could repair the rusted flanges and studs. Sooner or later they're going to have to come off or will fall off of their own accord! I found these replacement flanges https://exhaustpartsuk.com/product/3...-2-1592954917/. Does anybody haver any experience with or thoughts about this job?

Same question for the silencer/back box flanges.

Thanks

Peter