ok.
To sit flush w/o modification you need
91-94 Fenders (w/ Speed panels)
91-94 Front Bumper
91-94 Metal Bumper Support.
Thats it.
But honestly if your rocking an 89' more than likely you have a KA24E (SOHC 2.4L)
To explain: the motor you have is the d15 non-vTAK of the Nissan powerplants , I'd worry more about a better motor than exterior.
__________________
RIP Tim Aldrich
"..watch this
cool documentary on bums racing shopping carts downhill, and making a living off of selling bottles. living the dream."