I jut upgraded to these servos and they are noisy. I found that if I changed to limits on my remote to how far they went they got a lot less noisy. It seems that the noise comes from them not being in a true neutral/center position and it's the digital contacts makes the noise, kinda like and electric car when you barely pull the throttle. Either way noisy or not these have turned out to be awesome servos in my 1/8 buggy. Strong and fast no issues as of yet