Put your nuts on the line Mao. Confirm the part numbers on the rear pads supplied are in fact Project Mu pads. Get a written response from your supplier confirming this. Include the customer in the correspondence and let him double check it is correct with the Project Mu factory again.

They've said they didn't manufacturer the pads. If you dispute this, why don't you give some substance to your claim and satisfy/reassure your customer? Shouldn't be hard to prove if they are in fact legitimate.

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Bush chook enthusiast