Early on last year one of the members was talking about removing the internal baffles, there are two in in each pipe. I'm wondering what the results were for this "experiment". If you look up the tailpipe you can see a disc with holes. I got out my handy dandy hole saw and removed the outer two, one in each pipe and then saw another behind the one I removed about 12 inches further in. My point is that however much the warping aides heat removal there has to be a lot of resistance caused by these small discs. I intend to remove the last two also. I'll let you know it this lessens the "glo" on the headers