^^^^ 5th Gen Civic Si is just a hatch, springs are the same, motor is the same, power options are the same, and 5th Gen EX's have 4 wheel discs also.
Also, the reason people choose the B18B over the B18C is due to lower compression, the B18C has oil squirters. Boost the same PSI on these motors and the b18C is still making more power. People are just afraid of the high CR and don't want to fry rings or blow a gasket
they REALLY don't want to blow the welds on the intake manifold though
<----- that was a joke for the slow people