In Reply to: Are they for the inboard mounts? (eom) posted by MikeB on March 31, 1999 at 13:33:02:
I noticed these studs when I worked on the subwoofer and later added the HMS rollbar. The HMS rollbar is designed to work with 96-99 Z3s.
I am sure that these studs could be added to the car but is it realy worth it. The HMS sportbar is a great product and certainly a lot safer than the factory roll hoops.