SS3

Yes, I think that would be obvious. What im really saying is that the GT4's (not sure about this earlier model) usually run quite a firm suspension.

And unless youre going to a track, the standard suspension is good enough for on the road (in the 94 models anyway)

Sport suspension isnt for everyone as its usually very jarring and a bit uncomfortable for daily use, esp. when combined with a larger rim like a 17"

Unless you have a high quality set up lik eTein Super Street and use a 15" rim

I tried 16's with my Teins (set on maximum travel) and they were very hard

15's are much better

How many k's has your car done?

I had a similar problem but in my high gears . That was my coils which needed replacing at 230k

Have you put in new spark plugs?

Changed your fuel filter in the engine bay?

Your standard suspension should be pretty good. A japanese guy won the africa rally in your car and he then went on to help design Tein Suspension