Head Band and Ioun Stone stacking question?

[Green Eyed Liar]

Do the INT enhancement bonuses from the appropriate head band and ioun stone stack? I am traveling, and do not have my books to see which bonuses stack.

[Ximen Bao]

Enhancement bonuses don't stack.

For that manner, any named bonuses (barring dodge) don't stack.

[Claxon]

No, they're both listed as enhancement bonuses.