Turbo just went out on my 07 lgt, will be replacing it with a BNR 16g. However, my mechanic (who has replaced a lot of vf40's/vf46's with BNR or VF52) says that the oil line that Brian recommends is not necessary. He showed me the line and it looks like it has less oil flow than stock...the diameter of the inside seems smaller. Can anyone clear this up for me?