I am unhappy with the product. The shocks squeak and groan when I go over bumps in the road. Also, the shock absorbers' performance to absorb a small pothole in the road is inadequate even when turned to the softest setting. The car loudly shakes and I think the chassis deforms slightly because I can hear the door seals move going over a bump due to low shock resistance. I don't normally give negative reviews but since these are advertised as a quality product demanding a high price I honestly expected a better quality product. In addition, the rear locking mechanism, despite tightening it as hard as I can twice has become loose causing the ride height to lower over time. I am disappointed to say I am considering selling these second-hand and buying simple OEM original shocks for the entire car.