I just bought a set of type s wheels off ebay, seller said they are OEM (Enkei?). I know there is also a really good knock off that sells on ebay, but they are 29lbs per wheel.
Does anyone know how to authenticate the OEM type s wheels vs the knock offs. Thanks

 

It should say Enkei on the wheel.

 

+1, it's all over the back of the wheel, all the info you need.

You can look for the p/n as well, it probably won't be on a knock-off wheel.

 

OP there is a wheel thread on what fits are car with the info you need to help clarify it.