Nos what does it mean
Nitrous oxide system. Used in vehicles to get extra power for a short time. If used improper can blowup an engine.
it is the shortened version of "nosostros" which means in spanish "we or us "
numbers -are you serious about this quest???
I know this might sound weird but Nos means "new old stock"
NOS, not otherwise specified
new old stock, not otherwise specified, nitrous oxide.