Muffler shop could take stainless exhaust pipe and make it a slip fit if you bring in the GMG so they can size it right. Unless you know how to weld - the welding route could cost you as much as the pizza oven... unless you know a guy.
Additional thought: The other end that sits on the burn pot could be flared just a touch bigger than the hole size of the firepot - so it just rests on the flange of the pot. It's stainless resting on stainless.
Additional thought: The other end that sits on the burn pot could be flared just a touch bigger than the hole size of the firepot - so it just rests on the flange of the pot. It's stainless resting on stainless.
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