need help code p0171 p0174 p1000 .. I have a steeda cold air intake and the program for it...don't know y this code keeps showing up...someone please help also I changed the fuel filter

Where can i get it from

I have a 2005 mustang just put on the steeda cold air intake. I brought the predator u7140 and up dated it. Now about every three days the check eng. Light comes on it reads 430 420 catalytic converter I don't have them on my car I have stright exhaust. I clear the codes and it last about a week ...