The Audi 4.0T turbos come shipped as a CHRA with compressor housing. The turbine is exposed and prone to damage through shipping or storage. This is some covers and plugs designed to protect the turbine and CHRA bearings from damage along with covering holes for preventing dust and dirt from getting inside the CHRA housing.
Edit: 2023-05-29: Added Longer version of the Supply Plug piece and Compressor Cap (Still needs to be tested). Compressor Cap did not work. Uploading V2.
The author marked this model as their own original creation.