I got the exhaust back from FSI today... in 2 pieces.
It seems that the lawnmower muffler's metal was paper thin around it's inlet pipe. It failed during the polishing phase of the coating process.
The saying "They sure don't make things like they used to" sure rings true in this situation. The metal is less than half as thick as the mufflers that I used on my minibikes back in the 80's.
The pipe looks beautiful though. A nice semi textured polished aluminum.
I cannot blame FSI or the outsourced shop that did the work for the failure.
I am asking the muffler to do something that it was never intended to do, and it couldn't do it.
Now I gotta strip off the coating from the end of the muffler (without going through it) and the end of the header to weld a washer between the two. That will hold up fine and be much stronger than original.
FSI offered to re-finish the affected area for free when I am done.
1 step forward, 2 steps back...