Good god. Most of you people really don't know SHIT do you?
ALOT of JDM B16a's ARE out of 90-93 Integra XSi's.
The little pulley above the a/c compressor on the front of the engine is the power steering pump. You can remove it, the bracket and tensioner that is built on to go on your CRX Si.
As far as I know, except under dealer option, there was no power steering on any Si model CRX. DX's came with it because they were "Deluxe" package cars for the lazy. Thus, the P/S and Automatics were ONLY available in factory form on the DX's.
Hope this answers your questions, 90crxb16a.