Here's a photo of this infamous (and not that uncommon) crack:
phunk called it.
Truthfully, the sky is NOT falling. No one is losing boost or exhaust out of that. Had mine not come apart, I'd have never known. Probably been like that for a few thousand miles and would stay like that.
No it's not great, but *what if* you simply put it all back together and ran it? There is all likelihood it would continue working as wished. Just saying.
Coop