GearBox change

[AudiS3Q4tro]

Hello everyone I need to change my gearbox on my audi S3 8L, currently the code on the gearbox I have is FMN... I have come across a gearbox that has DQB code does anyone know if i can straight swop the gearbox??

I did download the gearbox ratio spread sheet however FMN is not on the sheet... any help would be great thanks