Your premature tire wear is not caused by the ~3 degrees of negative camber. Your rear toe alignment is out of spec and killing your tires. You'll need camber arms and toe bolts if you want to get closer to stock alignment. That is assuming you want to remain lowered. If you wish to return the vehicle to stock ride height, the camber/toe specs will return to normal.
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2017 370Z Nismo Tech 6MT PART OUT IN PROGRESS
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