Daikei Airbag Boss Hub 1990-1997 $80: Great Condition. This is the best boss hub you can buy for the Miata. This has two lug patterns so it is compatible with Momo and Nardi wheels. This hub has been discounted because it is missing the plugin resistors for the stock connectors. This still has the enlarged hub housing so you do not have to cut your stock airbag harness like in non-airbag hubs.
TLDR: Compatible with momo/nardi. Has room for airbag loom. Is missing plugin resistors for airbag light.