B16b Swap

HEy

Im getitng a B16B motor and im trynna swap wit with my stock JDM d16y6.

I've heard the hp rating for B16b is around 180 bhp
is it so?

also would the motor mount in easily?
secondly what about the ECU? im not sure if Im gettign an ecu with it? can Iuse my stock ecu?
also, im new ot all this, kindly xplain what is"OBD2a - OBD2b "
n if this is related to my case

thanks guys

B16B
98 Spec-R

1595cc
4 cyl, 16 valve
DOHC VTEC
10.4:1 c.r.

185 bhp @ 8200
Redline: 9000 rpm

16.3Nm @ 7600

They have 10.8:1 compression.. and this guy posted this in 3 different areas.