This is the same size as the 2000-2005 Passat and 1995-2004 Audi A4. It is slightly larger than the K03 on the 98-99 Passat 1.8t, but will work fine in that application.
This turbo is made by a ISO 9001-2000 Compliant Company.
See below for more detailed information on exactly which models this part fits.