OK...i figured i have two cats on my 94 f150 302. Does anyone know about getting rid of the second cat then running a 3" pipe from the y-pipe cat to a gibson system. Will this lower resistance. Will it pass emissions? is it worth it? is there an o2 sensor on the second cat? I'm trying to keep this affordable, or else i would just chop them both and get a highflow cat.
Thanks in advance.
Ray