Coilovers knocking noise (spax)

Heppy997

Paid Member
Got an annoying faint thudding noise coming from the front left of the car. Only really audible at low speeds over pot holes etc. Not to be confused with the more common suspension knock at low speeds (the car also has this but given up with that pursuit). Anyone any ideas? Lots of suspension bits are new including : lower ball joints, drop links, rotation bars, steering rack, top mount and bolts. I put a used set of spax coilovers on the car recently, they had apparently done 12k. Could the shock be knackered?