I'm looking at picking up a set of Pacesetter coated headers and Y-pipe. I want to run Magnaflow bullet-style cats with the Y-pipe, but in all the installed pics I have seen it doesn't look like there is much room. Is there room to weld in the cats or does anyone have pics of where they welded in cats with this system? Also, has anyone had their truck dynoed after installing the Pacesetters? Just wondering where they stand compared to ARH, Kooks, SW.