Rb25 Turbo - Markings On Turbine Wheel

[rawd]

Hey guys,

Recently bought a rb25 turbo and it has some markings scratched into the ceramic turbine wheel. The marking reads "TA204" and something else starting with "A" on the other side of the wheel (can't see all the writing). I have attached a pic of the turbine below. Has anyone else seen this before or know what it could mean? Pretty sure the turbo is not high flowed cos I measured the two openings and they were ~56mm compressor and ~44mm turbine side, as well as the turbine wheel being ceramic. I'm about to get CEF11E remap and wanted to make sure it's just a normal rb25 turbo. Would like your insight. Thanks.

Rod

[rawd]

nobody knowssss