You say Chinese knockoffs like that's a bad thing. China will make what you pay them to make. You pay them for crap you get crap but the opposite is true as well. The biggest thing is you have to keep a close eye on quality control over the production runs... And making sure they don't give your plans to other factories to allow knockoffs of your knockoffs
If China is making the oe Borg warner, but the knock offs are also made there I don't see the big difference.