How much is it to replace my control arm bushings on my 2000 A4 with sport suspension? My car has been squeeling like crazy when i turn or go over a bump, and i believe that this may be the solution, correct me if i am wrong

 

The bushing don't really come out, you will need to replace the controll arm. If you can isolate witch one it is then go here. www.ecstuning.com , they will have what your looking for.

 

Don't replace just one control arm, if you are in there replace the uppers (Which are what is probably squeaking), then the sway bar links which are probably destroyed from the loose upper CAs. Tie rods have known to be an issue too - preventative maintenance. You can get kits for this.