You can not use the integra radiator and retain the factory ac. Now if you want to do some welding and quite a bit at that you can install the integra radiator support in the car which will allow you to use the integra condensor however youre gonna have problems with the bumper/headlights sitting on the car correctly. Its next to impossible unless you just swap an integra front end on the car more trouble than its worth when a dual core is sufficient.