Hey guys! So I went to a local cruise/meet and got to know some really great guys. One of the guys is the shop foreman for the local Infiniti Dealer Service department. He let me know that they are replacing at least one turbo a week on the Twin Turbo Q50/Q60 due to the lack of a blow off valve system or recirculation system. He said that the earliest he's seen a failure is at aroung 15K miles, and it starts with a whirring/whistling sound that gradually gets louder. My car has about 6k miles but I would swear I have always heard a slight whirring/whistling sound coming from my car and I think it actually sounds cool. Anyone have any turbo issues/replacements etc?