i have a 1994 f150 5.0 have only 1o2 sensor and looks like 2 cats i want to remove 2 nd cat but replacling front pipe and front cat will it pass pa inspection and can it be done

 

Welcome, you most likely need to inquire in the county in which you live.

 

why do i need two cats when i have 1 o2 sensor before first cat

 

Welcome.

 

Dont know, maybe thats because its the law? Have a good one!

 

Welcome to the forum!

 

I though in pa after a certain year you did not need emmissions

 

Pretty sure it federal law that does not permit cat removals, so state law will follow.

I live in PA and whether or not you can get away with it depends on where you take it to get checked, if you know what I mean.