jdm baffled decat help?

[justintian1218]

Hi guys, I am looking for a baffled decat, as the system I got is 2.25" manifold and ek9 2.25" middle pipe. I don't really want its too loud so I prefer a resonar one...Japshop Civic 96-00 DE-CAT
Like the last one in that page? However the Mouth is 89mm... is too big I suppose?

anyone know where to buy? cheers!