What year Integra? Why do you want to that anyways? Are you thinking ofg a coversion that only has one headlamp? Instead of two? I believe you would need a bulb that is 9004 or 9006 high & low beam, then you would need to butt splice your high beam wires into your low beam wires. That or I think there is an adaptor for it. Contact Matt Bourgo at www.darksidemotoring.com
he has a one head lamp conversion on his Integra, ask him what he did.