Is there a difference in the DA and EG knuckles preferably EX and Si??

 

I don't know about DA knuckles, but I can tell you that 92-95 Si has a different knuckle from 93-95 EX 2dr. The coupe (2dr) has larger front brakes (same size as integras with smaller cailper piston) and different knuckles to mount the larger calipers further out. The Si has smaller 9.3" front brakes unless it's the rare 94 with ABS option. I'm guessing DA calipers are the same or similar to EX 2dr since they both mount the same calipers...

 

The curviture on the DA is knuckle is different than that of an EG/DC.

 

yes they are very different