Re: T-45 turbo
As somewhat of a guess.
It has a T3 turbine housing.
It should have a big shaft turbine wheel approx 2.4-2.5" turbine wheel. Maybe like "P" trim?
T-4 compressor housing Approx 63 MM compressor wheel.?
Might have been made by Richard Chan of Canada. But those were called a TE-45 IIRC.
Post a pic if you can.