I had a Civic once.
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Not exactly sure what you're asking, but:

EM1 is the chassis code for a USDM (USA) Si or CDM (Canadian) SiR.
EG6 / EG9 / EK4 are the chassis codes for an EDM (European) VTi.

Both have the same B16A2 motor. Some VTi's also had a B18C4, but was uncommon I believe.