02 LX I4 and 02 EX V6 both have 2 stage bags on both sides.
The coupe and sedan bags are different though, in relation to how long the wire harness is, I think.
The easiest way to tell if a bag or vehicle is 1 stage or 2 stage is to look at the wiring harnesses. 1 stage bags have a 2 pin connector and 2 stage bags have a 4 pin connector.
** Do so at your own risk
If the bag you bought is 1 stage and you want to put it in a 2 stage car, your mechanic could do some wiring and replace the connector. The first inflator has yellow wires and the second inflator has red wires on the airbag. Between the clock spring and airbag, all the wires are blue for both inflators (4 wires). Between the SRS unit and the clockspring, the first inflator is a GRN and a GRN/BLK pair of wires. The second inflator is a GRN/WHT and a GRN/YEL pair. It's possible all 4 are green. In theory, a 1 stage bag could be connected to a 2 stage unit by only using the 1st stage wiring, as that would inflate first and inflate the entire bag.