I might be buying some Apexi WS Dampers for my EK but, they are for an integra. i know the rear wil have to be modified a little but, i was wondering if its okay putting coilovers for a diffrent application onto my car??

 

Its fine. As for the rear, you can either get EH Civic/ DC2 Teg shock mount bushings, or just use some washers. There is a 10mm difference in width.