Awful Suspension Noise

[Bostonblux5]

So my suspension makes a clunky popping noise when I go over small bumps, accelerate, deccelerate, and turn- it sounds like popcorn slowly popping in the microwave ( like pop, pause, pop, etc.) Any ideas?

I'm going to replace the worn parts and I would like to lower it, what in addition to springs and shocks should be replaced, my x5 has about 65k miles?
Thanks

[The Cleaner]

C/V joints is my guess. Thats the exact symptom.

[Bostonblux5]

i see, are there 4 (one for each wheel)? Is this expensive?

[The Cleaner]

2 joints on each axle, 4 front and 4 back. The Front outer is the one that takes the most wear, look and see if the boot is in tack, if not your in for 432.00 for each axle (2 needed) and about 600-1000.00 labor. In the 1.5 to 2k range for that job on both sides.