Yes, the ThingWorx Manufacturing apps can be imported as ThingWorx extensions into an existing ThingWorx Platform install (v8.0.1). ThingWorx Manufacturing Apps are imported as a ThingWorx extension for all instances other than the Express and Developer Edition licenses.
Note: If you ran the Express installer, you cannot import ThingWorx Manufacturing Apps as a ThingWorx extension.
Instructions for importing these are included with the download, or are also available here: Not authorized to view the specified document 3992
The extensions will work only with Thingworx 8.0.1 at this time. There are known issues if you install with prior release such Thingworx 8.0.0 or earlier and no workaround exists.