'08-'10 Mazda5 exhaust pipe diameter

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2008 Mazda5 GT
Anyone know exactly what the O.D. of the stock exhaust piping? Google can't seem to find a straight answer but it seems to be 1 7/8" or 1 3/4"? Pipe to flange weld rusted off and the gasket crumbles apart. I suspect there may be other leaks down there. Need to know diameter then decide if I'm going the cheap coupling and clamps, new intermediate pipe, or replace with used exhaust pipes from a newer car. Mazda 3 crowd say theirs is 2", which is NOT what an '08 uses.
 
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