Dan wrote:knocking is usually a sign, or fluid leaking either from the top of the shock or down the side
No its not.
Did you get top mounts with the shocks or are they the standard ones?
I had some knocking with the teins I put on mine, they were on the standard mounts. Apparently the tein pillow ball mounts will solve the problem. On the other hand it could simply be that the bolts in the engine bay and boot are not tight enough. Check that first.