Easiest fix evar: just realize the noise is coming from the rear brake pad wear sensor.
I'm a tool for not checking the brake pads 1st. But in my defense: a) I didn't even know there was a wear sensor noise maker thingy on the rear pads, and b) I forgot the last time I did the brakes, I only did the fronts... I guess those rears wear out about 1.5 times as fast as the fronts and not 2 times as fast like I'd hoped.
So, this means that I don't have to spend an ass load of money on bearing parts (thank god I didn't order $400 worth of parts this morning!). It also means I'll wait on the longer wheel studs till the bearings actually do need replacing (I'm sure racing the car w/ +48 offset rims will eventually do it).
The only thing that sucks is the reason I even bothered to look at my car tonight was because I noticed my RR was flat on the drive home from work! I took it off the car and pumped it back up and went over the whole thing inch by square inch with a spray bottle and couldn't for the life of me find a puncture.
The only thing I can think of is that some punk saw my car in the IGT parking lot, and since I was still on my race tires that don't have stem caps, they decided to let some air out. Highly unlikely... but I honestly can't find a leak *at all*. I inflated the tire way up, and I'm leaving it over night to see if it bleeds off any air. Then I swapped the P1s back on.
While I was swapping the rims, I checked for any play in the bearings, and I can't get even the tinyest amount of deflection in the bearings. I also couldn't get the LR to make any noise when I turned it while the car was up in the air. Later while torquing the lugs, I heard it squeal as the car rolled like 1 inch forward. I thought "no way that's a bearing, the car's barely moving!" so I went back there and pushed on the brake caliper to move it away from the rotor, and rolled the car and the noise was gone. So I'm pretty confident, all I need to do before Buttonwillow is get some new pads on there. Perhaps I'll take Dean's recommendation and go for some EBCs or something... Oh and I may need to get one new Azenis, and have it shaved to match the other 3, it that tire's leaking. I'm definately not going to patch a race tire that I plan on driving at 100+ mph on!