Spherical bearings transmit noise. When you get rid of your 3" thick OEM rubber shock mount and replace it with SOLID STEEL, you'll get a bit more noise.
That says nothing of the quality of the coilover, or the quality of the company.
When you don't put anti seize on the adjuster threads, they'll seize up. Again, nothing new. The parts need regular servicing.
Don't hurt a company's reputation because you don't know how to work on cars.
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