for 2004 and later you will need this one: 11213-97206 (bottom gasket in the picture) 2003 and older have a different valve cover and thus different gasket (top of image with this part number 11213-97203) You can find both on Nengun (Genuine Copen L880K Engine OEM parts supplied from Japan - Nengun Performance) but note they ship from Japan. The Ajusa gasket kit (which can be found in places like Autodoc) for the JB-DET comes with the gasket in the top of the image.
