Did my stock standard civic last week. On the drive back, can notice this 2 things immediately:

- Steering wheel feels heavier
- Going over humps, the rear of the car doesn't bounce up as much (rear is not as light as before i presume)

Over the weekend, improvements noticed were:

- Handling of the car better esp. when you are cornering.
- Noise reduction (don't notice much difference on normal driving, but over uneven roads think got a bit of improvement)

All in all, a good product. Recommended seller. Having done the undercarriage and rear, maybe next up something for the front like installing a FSB...