The turbo I have is a Volvo one. The housing has a bunch of big cracks in it.
It is kind of sort of t3 flanged. T3 bolt pattern but Volvo put a weird circle shape to it
its not the same pattern.. the ones i have, are about a half a bolt hole off from standard T3..
if you are making an adapter, it wont be a problem tho..
bolt pattern won't be a problem,,,