check engine codes 420, 430 & 1622

Sorry to tell you this, but your aftermarket cats are not meeting the operating criteria for your vehicle. There is conflicting info on aftermarket cats. Used cats are not supposed to be sold at all and there are no universal fit models. On OBD-II vehicles like yours the operating parameters for the emissions system are very precise and specific, so the chances of an aftermarket manufacturer making a unit that will work correctly in your vehicle are not good. You should try and work a deal with the company that installed the units to see if you can get credit and have them install factory OEM cats. Good luck.