Hello I have a 2017 SS I installed headers and bought a build from Livernois. The problem I'm having is that I keep getting these codes P0420 and P0430 and P015/B/D. Ive had to reinstall the build 4 times now, how can the build revert back to the original build? I drive the car about every 2 months for about 2 hours, starts out great and within 30 minutes the codes come back and the car runs horrible. Very frustrated, anybody have any ideas or experience on this issue?