Exhaust flange size?

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The Magnificent Seven
Oct 16, 2005
2,738
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38
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Virginia
if anyone's looked at my homemade exhaust thread, then you'll know what im doing.

if you haven't looked at my homemade exhaust thread, its not that hard to figure out:biglaugh:

anyway, i need to know the flange size to weld onto some 2 1/2" pipe to meet up with the downpipe.

is it called the downpipe only in turbo cars? if so, i need to bolt my pipe up to whatever the hell its called. anyone know the size, or have a spare piece of pipe i could cut up to get one?