Appears Anodizing is selling
on Ali as well. Prices have gone up due to tariffs, they're hiding it in shipping costs.
You figured after all this time, someone selling this stuff would've picked up some calipers and determined that exhaust's outlet is same diameter as middle-pipe adapter. Or maybe someone got ID & OD confused at factory.
Well, if weld breaks, at least
middle-pipe adapter is cheap to replace.
Although
this one appears to have thicker welds. They're running welding machines little too fast I think, not enough penetration.