'Discount' says it all

Mine is a continuous click click click - one after the other, not per rotation - so rules out that option (in my case)

 

Are you lowered?

 

I'm stock - except for an ACT Clutch Kit, but the sound was before that.

 

It was my understanding that bad cups typically only make the noise in one direction, thus swapping (reversing) them eliminates the clicking. Raise the rear of the car on jackstands and have a buddy hit the gas while you identify where the noise is coming from.

Wheel area = spindle nut.
No noise = probable issue with suspension.
Axle cup = well... enough said
Differential = PITA!

Done and doner.

 

Axle nut usually only makes a single click when starting (load). Usually not a repetitive clicking.

 

Think I'll cry if its the diff - those things are shockingly expensive over here.

 

Oh geez! I just looked at your sig. My money's on the differential with that kind of hp/tq.

 

Update: mine would make a muffled click that sounded/felt sorta like if you have a rock or nail in a tire. It would only make the sound when I would get on the gas. The rate of the noise corresponded to each revolution of the wheels and axles, which is about 7 per second at 30mph, 9 per second at 40mph.
Turned out to be wear on the inboard CV Hub on the driver's side. I did the CV Hub side-to-side swap (instructions are in the DIY section) and problem solved.

 

^---Could be the axle issue, thats what I thought at first....I let mine go for quite a while, until the noise turned into a vibration.

Wheel bearings!!! As the wheel bearing wears out, the TQ on the axle nut is released. if you re-torq the nut and the noise goes away, be ready to replace the wheel bearing soon!

 

Had the same issue after I purchased my '02 AP1 a year ago. Took back to the dealer and the service department determined it was axle nut. They replaced and retorqued to spec under warranty because the service manager said there was a "service bulletin" that covered it.