rb25 power steering is non hicas?

[1990 240sx Rb25]

im looking to buy a chase bays power steering kit for my s13 with a rb25 in it.the kit say the power steering pump need to be non hicas. i been looking around and from wat i see is the rb20 and rb26 is hicas. anyone can shed some light no this please

[greenwood]

Take off the back of the pump, remove the 12 or so square 'fins' put it back together. Done.

[1990 240sx Rb25]

i thought i was a non hica cause no lines go to the back like the 26 i was lookin up and people were saying non hica if that the case how can u get a no hica and the kit comes from chase bays