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EA81 stock header pipe diameter needed?

Jerry DeMoss
in Old Gen.: 80's GL/DL/XT/Loyales...

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I would like to see if anyone has an extra ea81 header laying around.I would like to see what the diameter of each side of the exhaust header pipe is?I would like measurements from the inlet side from the exhaust port of the head and also the exit diameter from behind where the cat is.If anyone could lend me a hand with this that would be great.Thanks.

Looks like 1 1/2" ID at the flange that bolts to the head, and 1 3/4" behind the cat. Just took it off my '83 Brat.

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