Originally Posted by RedB66
Not positive but.... I think you should have two more pieces of silicone tubing around the connections on the copper piece. One on each joint... that (they) don't require clamps. Are your CDI wires resting on the pipe?
As mentioned in my post the small silicone tubes were installed after test runs. Made no immediate difference.
Not obvious from the photo but the wires are actually 2" or so away from the pipe which is in same position as the stock exhaust was. I put thousands of miles a year on these bikes... believe you me... problems like that got ironed out some time ago.