never seen this before on a SA-200

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started on a red face today and in the center of the exhaust there appears to be a 1/8" diameter rod coming up the exhaust pipe. Its mounted down at the bottom of the manifold and comes right up the middle of the pipe about a foot..any ideas
Reply:emailed lincoln about this and have had no response yet either. On the underside of the manifold the casting changes slightly there so it was intentional.
Reply:Just a guess, but it might be part of a spark arrestor. Is the rod threaded ?
Reply:no,just a smooth rod about a foot long