I have seen AutoZone parts fail right away and I am not a big fan of AutoZone or Advanced too.I work at a shop with my father and seen this.My father replaced a set of AutoZone plugwires with Carquest plugwires on a Chevy truck,missed after they were replaced and the miss was gone after replacing them with Carquest wires.I know someone that works at a Carquest parts and is not a big fan of AutoZone too.