ys1 from a da w/ b17 ? thats rare. I looked it up for you on ht, yes you can use the ys1 tranny on any 93 or or older integra. but... If you have a ys1 from a da w/b18a i dont think it would be worth it, the gearing is slightly longer. you would be better off with sticking with the stock y80 gsr tranny.