The CT with the larger turbine has the smaller AR housing that that will limit it. The center is the Chinese CX racing style t61 turbo looks like?
Its very possible the center is a chinese turbo. it is engraved sc6176 on the compressor cover but thats all I have to go on. I assumed with it being a precision unit (sc6176 is an old precision PN) it may be an old SP unit and the wastegate actuator looks similar to those found online.