So I bought the car with the cats taken off the car and looks like they were in the process of putting on short headers and then stopped working on it. It doesn't run without playing with the throttle. Put i looked at them when I was in the process of buying it and thought they didn't look stock so I looked them up and they said they where for a 4.6 liter not a 5.0. I just want to make sure they are correct or going to work so it doesnt run lean and I have a meltdown.