Exhaust Manifold Flange

[jslot]

The wiki says "TO make things even more confusing, there are two sizes of 4-stud manifolds; small and large."

How can you tell which one I have, are they both the same shape? My manifold is shaped like this:

http://www.ebay.co.uk/itm/Gasket-exhaus ... 27f68ff627

Thanks in Advance

[Brianmoooore]

http://2009.bmwfans.info/parts/catalog/ ... _catalyst/

The pic. shows the other type, but the part # (2) is for the type in the ebay link.

[jslot]

Thanks Brian.