Duramax intake after 250,000+ miles - how dirty is it?

looking at the clogged up intake pipes and egr of a 2008 Duramax (LMM). Stock truck, no egr delete or pcv re-route. For a detailed video on the complete removal and cleaning check out my video listed below.
LBZ Duramax egr removal and cleaning • LBZ Duramax egr remova...

[@jdff3954]

That plate work the grid is the intake air heater-- if it fails, you may see white smoke.

[@johnp7824]

Will the EGR re-route help with reducing the build up? Can't delete I'm in California too.

[@ThatllDoEngineering]

If you mean the Pcv re-route, yes it will definitely help. I run my pcv to a catch can, then back to the intake. Some vent the pcv to atmosphere that’s just more diesel smell in the cab that I don’t want.

[@novicenova]

Could I just use one of the Sea Foam upper intake cleaner cans with straws work? I know it does miracles for gas engines.

[@ThatllDoEngineering]

I don’t know that it will work as well as a thorough cleaning but I would think it would help clean out some of the mess

[@juliovaldez5468]

I burned all that off my LLY egr with a propane torch. Unfortunately, I haven't restored it to see if it worked. Can anyone see a reason why not to burn all that off?

[@ThatllDoEngineering]

I suppose the only concern I would have about using a torch is warping the metal with heat, but as long as you didn’t get it red hot, I don’t see a reason that wouldn’t work.

[@modificationnation8554]

That’s exactly why I deleted my truck

[@61066clocks]

What a mess....this a perfect example as to why it needs to be deleted..I understand some states tie Your hands on it tho..