I'm looking at using a Dynatech PowerCat catalytic converter (DTC-79-400250 on Summit) because it will mate up with a Hooker 16767 Y-pipe. It is listed as a 2.5 slip fit intake and outlet. Will the Hooker cat-back kit (HOK-16820HKR) mate up with this converter outlet, or is the Hooker cat-back designed to mate to the stock cat?