Exactly! Mine started right around that same mileage as well. Up until that point I read these threads thinking, "man, I'm really lucky I didn't get one of those!"

It is horrible. Even with my exhaust it is just killer... gives me headaches all the time. I hate it.

I am tempted to take the car in but doubt it'd do any good... thinking maybe I'll just call my dealer to see if they've been dealing with any of this and have them let me know when they see a TSB come down.

Great multiple posts to both of you. The noise in my G37 started about the same time as you saw...8K+ miles during a road trip. I thought it was just the specific rough stretch of interstate highway that I was on and something was loose. It initially went away when I got to smoother pavement, but now I hear it almost every day. Every once in a while I get a reprieve and don't hear it for a day or two, which makes it even more perplexing and makes me feel that the problem is more involved than simply the ECU. Weatherman, I'm like you...I hate this noise with a passion and I'm glad to hear someone finally mention a specific dealer name and service writer that has acknowledged the issue. I would think by now that all the dealers would have been advised of the potential problem, but my dealer couldn't replicate the problem. The loaner G35 they gave me had the same issue. I really like my car other than this problem, and I'm determined to find a solution other than stuffing a gym bag in the footwell of the passenger side! Thanks for all the good scoop from the Z side.

I just looked on the G37 forum, and one of the members got the "couldn't replicate" response from the dealer on this noise. They wanted to set up a followup meeting with a manager to talk "discuss" the situation. Maybe we need to take our cars into the Nissan dealers..at least some of them appear to acknowledge the problem.

All I can say is get an attorney and don't let Nissan push you around. Everyone who has this problem needs to step up to the plate, find a lemon law attorney in your area (it will cost you noting!) and go after Nissan. Even if Nissan comes up with a fix if you have filed a claim and have an attorney you will get compensation. It is ridiculous that Nissan is not trying to fix the problem but muffle it.

I just listened to the tone...... Holy smoley! If I had that sound, I would go bananas. How in the H!ELL do others with this noise bear it?

This would pierce my ears!

Well for lots of us it's our only mode of transportation so we just have to deal with it for the time being. I crank up the radio louder than I normally would to try and mask it.

This alone would have been something to keep me from buying this car, but lucky for Nissan it didn't surface until around 8500 miles. If I knew about this problem before I bought mine... either by reading here or listening to it on my test drives I can tell you without a doubt that I'd be driving a different car right now. This car just isn't good enough to justify dealing with crap like this!

Interesting, tonight I drove my Z, and I noticed the sound. It's very faint to me, but present.

Makes me wonder if there are different levels of "fail" involved when it comes to the noise.

So you have a lemon law lawyer and they are free? thats good to know for when I get to that mile limit and if mine starts to do it.

My hearing is too good to ignore the noise. It's loud, distracting, and aggravating, so it's becoming more of a safety issue for me.

If there isn't a fix soon, I may have to go the lemon law route. I went with Infiniti for my G37 vs. BMW, etc. thinking for sure it would be more reliable, but this is the worst issue I've ever had in any car that I've owned since it appears to be unfixable (most likely much more involved than just the ECU) and the dealers are just doing a song and dance delay routine. I think Nissan/Infiniti is on the brink of becoming another Audi in the '80 with their defective transmission problems that they never owned up to. It nearly sunk Audi.

Does anyone know what the recorded volume levels are? I hear it faintly from time to time but it doesn't drive me crazy yet. I only have 1800 miles though. Maybe we can do what they do in the airplanes by using a noise canceling frequency until a fix is made. I bet or hope the fix will be something very simple. :stirthepot:

Mebbe everyone gets together for a class-action lawsuit? I know nothing about these things, though. Any lawyers on the forum?

Any Nismos encounter this noise yet?

i was just wondering the same thing.

You probably need to give it some more time and let the miles build up. There isn't too much of a difference between the regular 370 and the NISMO, so I wouldn't doubt that we'll start to see some complaints from NISMO owners after they run 8k miles or so.

I was just looking for another variable that could help determine the issue. If Nismos aren't getting it, could that indicate that the ECU is to blame? Or do we have the same ECU with just different software loaded on it? (I'm ignorant on that)