Catalytic Converter Recommendations for stock exhaust

[Some Guy with a GM]

I have a 98 Tahoe 1/2 ton 4x4 - it appears that the cats are getting old, triggering the check engine light. The o2 sensors seem to be working fine.

The exhaust is in pretty good shape and completely stock. I don't have to worry about emissions testing but of course want the FI system to be happy with proper 02 readings.

Any recommendations for brands/models/types of replacements cats?

 

[df2x4]

Magnaflow makes a really nice bolt in intermediate pipe with cats. Has a lot nicer bends in the pipe than the factory piece.