Hello, I have a 2013 Mustang 5.0 AH headers and an Airaid CAI. I've been trying to get my car pass emissions here in AZ but have no luck. I took my car to the dealership to have it reflashed to OEM spec. The dealership told me that the car is running severely lean after they reflashed it. Sure enough, my car throws a lean code after I got it home. I have an SCT x4. I called American Muscle and had them write me an emission tune to compensate for the CAI. I still have not been able to get my O2 to become ready. I need help with any ideas. If someone could send me a chart of how they have there O2 sensors set with the same bolt-on mods I have, that would be greatly appreciated. @hptuners