straight pipe?
 

so i was wondering if i take of my cat and muffler with it throw any codes on my truck which is an 05 f250 and also will getting inspection be harder? like i should keep the pipe thats cut off with the muff and cat? also my exhaust is stock how much louder will it be cattless and no muffler? :)

Since you have a 6.0L, i don't think it would throw any codes.
As for the inspection, do you mean emmisions, or a different inspection?
It will make it a bit louder yes.

inspection will i pass without muffs or cats?

I had a 6.0... Straight pipe sounds better on it than anything else in my opinion. I went from a magnaflow and it had a little growl. To idoling it sounds like a jet plane whistling.

Depends on the state for the inspection.