Ecotech MP60 silent drive driver upgrade
 

I recently upgraded my (2) MP60 wireless drivers to the new Silent Drives and the difference in noise is amazing. From the usual HUMM and audible vibration it's now a quiet wisp with a hardly noticeable difference in pump throttle from min to max. I would say the noise is down to at least 25% of where it was and I can see no noticeable lack in performance in terms of circulating flow.
I was skeptical about not having to change the dry side (MP60s only) but looking back, the money was well spent considering I haven't touched them in over 2 years.
Good ol' Ecotech!