Exhaust help

[Flats1]

Ok I need some help with my truck. My cats on my 2005 4x4 f150 5.4 are clogged. I was wanting to buy a whole new exhaust kit from the manifolds back but nobody sells a kit like that. Does anybody know if there are aftermarket cats that would work with this truck? Also I was considering cutting the cats of since they are so expensive to replace has anybody done that with this truck? Was there any affects to the truck after doing so? I know there would be a check engine light but can i get my edge custom tuned by gryphon to take care of that? Thanks for any help.