I would like any suggestions on quieting down mypower steering pump.No alarming sounds but just that whine at higher rpms (1500+).

I have changed fluid and hoses, flushed cooler, and put an inline filter to help keep the fluid clean.

I have seen people recommend electric pumps but I really dont want to go that route.

Any high end or just plain good aftermarket mechanical pumps that are quiet?

What is it exactly that is making all that noise anyway?

The only thing I wanna hear is my exhaust.

BTW current mileage is 65000.