I have a recently new to me bullitt. I need to get my car inspected but won't pass emissions because of my o/r x pipe. Can I get a stock pipe from a junk yard and throw it on and pass or is there more to it than that?

 

Thats all it takes. I have a off road h pipe and passed cause the rear O2 sensors were turned off. Try somewhere that is "pay if you pass" so if you fail you won't have to pay. They got in my car and the first thing they did was rev it. then they proceeded to leave it idling inside the garage (smelled like a gokart), they even looked underneath! Plugged it in and it passed so I passed!