doesn't matter what supplier they're from, the common cheap & fast design & weld quality of where the arm meets the rear pin is still fatally flawed for the potential stress of these brakes to break them.
technically they're fine for original NA spec but once you upgrade to GTIR with sticky tyres on fast tracks especially with turbo then it's no surprise the weak flawed welds eventually show up.
I've now reinforced mine with more welds all around that pin to reduce any stress points
