Ok this past weekend. I shortened the sideburner exhaust i have. I did just like the post had said. Just cut the 6 inches off and good to go. Well for some reason no matter what I do the bottom pipe attaching to the muffler will blow out air. I have moved the clamp back and forth and tightening in different spots and still the same thing. Any ideas of what to try? I was thinking to trying some RTV gasket repair and putting it around the pipe and then sliding it on. Any ideas welcome or let me know if the RTV might help.