Cat recommendations for 1993

[Hayes]

After a little asking and searching, I'm thinking my cats might be a little plugged-up and candidates for replacement based on the following:

1. Some heat buildup on the passenger floor.
2. Some rattle noises coming from the cats.
3. 175k miles.

I'm still open to arguments against the diagnosis, but in the meantime I'd like to get some recommendations, and I have a couple questions.

I've more or less ruled-out OEM cats--they're $$$ and it sounds like I may benefit from more modern cat technology. I've got Hanna sliders with big cat protection--so size isn't really an issue. Could I benefit from running two parallel aftermarket cats like the OEM setup?

What specific cat or cats would you recommend?

Thanks for your time.

[fourtrax]

i am interested in the response also, as my exhaust is a bit on the rusted side and 241K+. I have a CEL warning on the dash that the PO states was senser related. I haven't searched this subject yet to many other irons in the fire at the moment.