I installed the 16G for less than a month, but I found that one of my turbo is leaking from the seal btw cold and hot side, looks not serious but it leaks even I didnt drive it for a week, I have replaced the upper oil feed line with a aftermarket and it is slightly bigger size(4an), as the stock one is hard to replace without dropping the engine.

Does it look like the cause on the leak? Overflow oil to the turbo?