A/Rs are the same.
Wheel trims are also the same as far as I know.
this is another S14 turbine, I'm pretty sure from S14 K's AT.
Here's a reverse shot comparing it to a CA18DET T25 (on the left)
I do not have a part number for this turbo.
The distinctive difference is the 1-1 marking on the compressor face.
Pics sourced from here:
http://www.turbophile.com/our_cars/c...600_specs.html