that looks perfect! nice!~
any vibration or rubbing?

None. Works perfect and looks great.

That front tire looks pretty flush with 15mm spacers. How come some ppl with stock put 20mm and their's look flush as well?? Could it be their drop??

Keep in mind, al lot of people have the base model (non-sport wheels) and that makes a difference too I think. Dropping definitely changes the camber as well. Stock systems look best with 15 in front IMO

Stock Base Model wheels are also narrower than the stock Sport and Nismo models, thus bigger spacers for the stock BM guys...