Doc/Cat Clogging Issue

[HotRodDiesel]

No one has given any real answers whether or not the Cat/Doc will actually clog with a dpf only delete. Only rumored that it will. Is it worth while putting a truck back to stock tuning and running a short regen with the dpf off and the cat/doc on. Is this going to cause a problem running a regen with no dpf on, or is this what the cat/doc needs to be cleaned out, if it actually gets clogged. Just curious
Thanks

[Hollis]

My understanding, The cat is upstream of the DPF, so what ever the DPF does, it does not effect the cat. The guy I talked to, said, it was easier to do a cat and dpf delete than just the dpf.

[calebj06]

Truck does put out more soot with a tuner on. Prolly would take a while but the soot would eventualy clog it.

[HotRodDiesel]

but the question that still remains is, is there a cat/doc out there that has clogged? Everyone seems to believe it will but no one has ever said if it actually has. Anyone out there with a clogged cat? Just checking

[rlpzzz]

I am curious as well, my personal thought is why do the earlier models have a cat with tuning but we never hear of them being clogged. Can someone please explain the difference and why the 08+ will clog if not removed?

[powerstroke43]

I am running a cat with a dpf delete. I have about 10000 miles and it does fine, no clogs.