Well, I am going to get a 1998 Z28 when my car sells, and I am planning the first few things to do to it. I want to get Kooks Long Tube Headers, and a Y-Pipe, and a Cat-Back. I am going to get Quick Time Electric Cut-Outs so I can run open headers with the flip of a switch. What Y-Pipe do I need to get that has cats installed on it? Does someone make custom Y-Pipes with Hi-Flow Cats? I hear all the Cat-Back systems are about the same in HP gains, so I guess I will just find the one that sounds the best. But I am stuck on the Mid-Pipe? Any help would be apprecitated. Thanks, Ryan