With Quaife and most companies like that, they have the blueprint of a Micra gearbox but it would take a group buy for them to put it into production.
With the group buy that the Primera club did for them last year, they had to have a certain gearbox as the LSD would only fit in one (ended up been a P11 GT gearbox) so for example everyone involved here would have to have a facelift 1.0 gearbox 
