were they the OEM black Tokicos that came with the car originally or Tokico blues?
I've got a set of Illuminas that have held up pretty well so far for the last 3 years of autocross on my 90 GTU.
Depending on your budget I'd either go with KYB AGX's and Racing Beat springs or Tein springs.
Or for a little bit more a set of Stance coilovers.
From what I've experienced the biggest improvement on the car for the money is a good set of tires and then suspension goodies.
Save up for that streetport and then save some more so you can replace
(I should mention right at this point I'm looking to rebuild mine at the end of this season because I have a side seal that just starting to go - blows white smoke and get pressurizatin in the coolant on start from exhaust gasses when the car is cold - so I've been making a list which is why i mention the following)
all the rubber lines for coolant and vacuume
OMP lines
oil cooler lines
nice RB or Corksport header
oil pan baffle
Pineapple Racing oil pan brace
engine torque brace
Banzai racing engine and trans poly mounts
oh dear lord the lit just keeps going
sigh....