I believe part number is 16610AA100. They're only 10cc smaller as early WRX's (16610AA101).

And believe me, a TD05 is BIG. Later WRX's had TD04 turbo chargers and they won't be as efficient on bigger engines or running with more boost.

 

Thanks. First, we'll have to disassemble the EJ25 short block. It needs new bearings and I'm not sure if the crank has #3 or #5 thrust bearing. Then ordering a new bearing set and we'll see from there.

Engine ECU, fuel pump and injectors should be fine as long as we don't increase boost pressure over the standard 0,74 bar. That has been confirmed with a former staff member of Subaru in The Netherlands.