Very hard to tell just where parts are made these days!!!
Just cos' it has Nike written all over it----------doesn't mean a thing.
You can get parts from USA, Phillipines, Taiwan, China, Korea, Japan Thailand and it could have HKS, Blitz, Chev, Holden, Nissan, Toyota, NEC, LG..........you name it on the label. The parent company controls the quality [or attempts to], but that doesn't mean that other manufacturers can't do the same.