We have the same car (97 Civic Vti a/t). I had my front arms replaced recently at around 90tkm, but it was already bad when it was around 80tkm. I had everything done all at the same time. (upper control arm, tie rod, rack end, stab link, bushing). I didn't change the orig suspension though since it was still ok. I used all replacement parts. The 555 brand was only for the tie-rod and rack end. The others are some unknown replacement brand. After having done this, the car felt like new again. I can go over potholes and bumps with a solid feeling. It has only been around 3tkm or so and it still feels solid.

I'm not sure if your case has something to do with not changing everything all at the same time. Just a theory though.