We have sold a ton of the 240SX coilovers (alot more than the Z32), and for the amount of abuse they go through (drifting) plus the fact that the adjustment knob on the front coilovers is under the car which is exposed to the elements, we do have a small percentage of problems. But we do provide a 1 year warranty and replacement parts are relatively cheap after the warranty period. No other coilovers have as low cost of ownership.
The Z32 coilovers we have had zero issues with because the adjustment knobs are under the hood (front) and inside the cabin (rear).
