We don't recommend running a lowering kit with our shocks. The lowering blocks will usually move the lower mounting portion of the shock back, which will change the angle the shock is mounted at. This angle change causes the swingarm to have more leverage acting on the shocks, and the spring rate and damping qualities of our shocks are not designed for this increased angle and leverage ratio. The increase in leverage on the shock usually results in a less than ideal ride quality, as our spring rates will not be stiff enough to handle the increased force and rebound/damping control will be negatively affected as well.