There is no VZB spec 2. VZB is the original version which has been discontinued for years. There were only 2 models. The VZB V-spec. And the VZB V-spec speed version (also available for On-road)
If you need VZB parts look into Bullit, Arrow and JQ as they are all VZB models with different names.
All the new OS lines are now XZB and the parts are not interchangeable.