UPDATE: it was my wheel bearing. Kind of disappointed since i just had it replaced WITH the hub 15k miles ago and have only put 2 track days on it since then. I suspect a faulty install. No comment on the shop - they're supposed to be very reputable and widely recognized...


Below is a video I took.

I only hear this noise once the car/transmission is full warmed up, and I've been driving it for 10+ minutes or so.
I only hear it at low speeds < 30mph.
I only hear it when i'm off throttle - whether in gear, clutch-in, or neutral.

Car has 95k miles - 2006 AP2.
Transmission and differential fluid were replaced at 90050 miles on 1/4/2015.
Fluids are replaced regularly every 10k miles or 3 track days, which ever comes first.

Motor and transmission mounts were replaced with Megan racing at 92,500 miles.
Wheel bearings and hubs were replaced at 79890 miles with all OEM components. They only have 2-3 track days on them. The TSB was also address, and the axle nuts were torqued beyond the 220 ft. lbs. originally stated in the shop manual.

I'm still on the original clutch. I've never dropped the clutch or launched the car - never chirped or spun the tires from a stand still. Although I do have around 35-40+ track days on the car.

Nothing "feels" wrong, but it sure sounds wrong.

[media]http://www.youtube.com/watch?v=VGdMj6NPF6M[/media]

 

44 views and no clues or suggestions?

I'll get better "video" today rather than just sound.

 

Sounds like wheel bearings. Just a WAG.

 

It does sound like a wheel bearing, but i'm pretty surprised that it would go bad so soon. I just replaced the rears 15K miles ago along with the hubs... and only have 2 track days on them.

I'm guessing the fronts go bad as well, not just the rears?

The front right was replaced 10K miles ago and only has 1 track day.

Front left has not yet been replaced... Maybe that one??

 

You should generally be able to hear where it is coming from eh?