Catalytic Converter

[grantCO]

I'm looking at what I need to replace my stock cats. Can anyone tell me what size pipe go in and out of the cats? From the sound of things I will need to purchase a couple of universal ones and have them cut & welded into stock exhaust (I already have someone to do this for me, but just need to have them first). I think I have found a couple but not sure of size input and output, 2", 2.25", 2.5", 3"??? Thanks for your guys help. I've probably missed where this info was before, sorry.

2" is the size that worked best on my 99. I would make sure you go with a cat with a heat shield. Stay away from oval cats. There isnt a lot of room up there.

[Pghachey]

Thanks for the info, appreciate it.