ORIGINAL: BobHH
(''Funny, I have been contemplating that very thing. I wondered if you can tig weld on that cast aluminum. It's not so much about cost now that you can't buy replacement ultratrust mufflers.'')
If you read Mike Langlois thread/post on the N-40 going back into production line 7 states: (7. In the future we will be offering Ultra thrust mufflers. ) So the Ultra thrust mufflers will be in production again.
Bob Harris
That's good news but it says future. You can't buy them now nor get them repaired so this welding ideal might just work. Also, they may not be offering SS mufflers since they only plan to make LS engines.