Originally Posted by
kawa
The short answer is:
It's a Federal offense to remove the cat!
]
Rog
Yes it is but so it taking cigarettes across state lines.
That said the cat for that truck is relatively cheap. $205 for the direct fit unit from rockauto.com. It's not worth screwing around with emulators for for that kind of money. Your fuel trim will never be right with an emulator and stock ECM.