Aftermarket cats for ford

Wandering about aftermarket cats. Ive got a 13 F350 with 6.2, thst needs new cats. Its a complete assembly wth both downpipes and both cats. Problem is, its on backorder through ford.
Ive found magnaflow has it, and a couple other brands. Ive read horrir stories about people still getting codes with aftermarket. Any ideas?

Yeah ive read some vehicles are picky on cats.
I believe there bad from excessive idling. Im a field mechanic on natural gas compressors, and my trucks idle ALOT, sometimes all day. This particular truck has 265k on it. Still a nice truck and runs perfect. I had thought about just buying a new truck, but with prices , I think im going to try and run it snother year or 2.
One more question.. we dont have smog testing here, so the fact im getting the p0420, p0430 codes, ive read where some people have had luck just putting non foulers on the downstream cats, which will keep the light off. Any truth in that?