suspension = no there is a reason they make different parts for different years... can they be made to work? yes with fabrication etc...
Intake = Yes as long as you are able to upgrade Distributor & ECU as well for correct ODB version & also providing you are speaking of B18A or B motors. Same can be said about B17 & B18C series GS-R motors...
Exhaust = No the exhhaust systems between a DA & DC integra are routed differently.
this all said, I'll defer back to my primary statement... they make parts for each model year series for a reason. (90-93)DA Vs. (94-01)DC... best bet is to use the parts for your model year considering you didn't know this basic information which by the way is posted all over the internet of you search.
