According to the Nismo Catalog, the part is listed as a "NISMO billet oil pump, VQ37VHR." Part number: 15010-RRZ3C1. So yeah, as far as we know, it's at least a billet machined piece of steel, which should be able to withstand the higher RPM's.
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2012 Pearl White 370Z GReddy Twin Turbo
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