Do the original M3 seats contain airbags?
There are racing shells like the Recaro Profi SPA which weigh only 8.8 pounds each but I don't know if that will delete the side airbags.
If it's just a sensor that's in the seat that could probably be transplanted.
Also, I was wondering if anyone looked into weight savings from coilovers like these:
http://www.kw-suspension.com/en/30_P...port/index.php
That would save on the original springs which are usully heavy.
Very informative post.
Thanks