I went with Doug Thorley long tube headers and Magnaflow cats in the B pipes, which bolt to the collector flanges of the headers. That way the cats can be easily replaced without messing with the headers.
No.Just called the muffler shop. He said there is no way to weld a flange to the header?(is that what I should have asked) to make future cat service easier. He said that it would be too close to the star on the header, no idea what that means. The final verdict then was that the new ones HAD to be welded on and so whatever I buy is going to have no warranty... WTFFF. Is this really the truth...?